1. If
F=3i and d=6j, the work done will be:
* Zero *2 *9 *18
2. Beats
are produced due to:
* diffraction of waves in time *reflection
of waves in time
*interference of waves in time *polarization of waves in time
3. The
waveform of waves will be spherical when the rays of light are:
* parallel *perpendicular *monochromatic *not parallel
4. If
'F' be the limiting friction and 'R' the normal reaction. Then co-efficient of
static friction`
*
5. The
dimensions of G/g are:
* M0L-1T-2 * M1L2T-2 *
M-1L2T-2 * M-1L2T0
6. The
magnitude of resultant of two forces of magnitudes 2N and 10N cannot be:
* 4N *6N *9N *13N
7. An
angle subtended at its centre by an arc whose length is double to that of its
radius is:
*2° *57.3° *80°
*114.6°
8. In
a spectrometer, the focal length of convex lens is equal to length of its:
*telescope *obstacles *collimator *turntable
9. The
point which describes the motion of the whole system or body is known as the:
*center of mass *inertia *centre of gravity *moment of inertia
10.The
product of frequency and time period is:
*1 *2 *3 *4
11. When
a transverse wave travelling through a rare medium is reflected from a dense
medium, then phase change produced in it will be equal to:
*0° *90° *180° *360°
12. The
gravitational constant was determined experimentally by:
*Newton
*Einstein *Cavendish *Maxwell
13. A
projectile is thrown upward with a certain velocity. Its time of flight will be
minimum,if it is launched at an angle of:
*30°
*45°
*60° *75°
14.(i x
j) . (j x i) is:
*-1
*k *1 *zero
15. Two
forces of equal magnitude but opposite direction in direction and not acting
along the same straight line form a:
*circle *couple *power *torque
16. If
the time interval is very small (
*Average
acceleration *acceleration
*instantaneous
acceleration *constant acceleration
17. Weber
Fechner law is:
*I α Log L * L α Log I * I α 1/ Log L * I α Log L
________________________________
1. Artificial
gravity in spacecraft can be created by:
*translatory Motion *vibratory Motion *spin motion *orbital motion
2. Two
perpendicular vectors having magnitudes of 4 units and 3 units are added. There
resultant has magnitude of :
*5 units *7 units *12
units *25 units
3. The
luminous intensity of light is measured in:
*decibel *candela *dioptre *watt/
m2
4. A
600 N man runs up a stair of 4m height,in 3 seconds. The power needed is:
*24W *350W *450W *800W
5. Intensity
of sound is measured in :
* watt/ m2 *joule
/m *watt/ sec *watt/ m
6. The
dimensions of angular velocity are :
* ML0T-1 * ML0T-2 * M0L0T-1 * M0L0T-2
7. A
body, moving along the circumference of a circle, completes two revolutions. If
the radius of circle is R, the ratio of displacement to the covered path will
be :
* zero * πR *
2 πR *
4πR
8. The
focal length of magnifying glass is equal to the least distance of the distinct
vision. Its angular magnification will be :
* 6 * 5 * 2 *
1
9. When
Newton’s rings are observed by reflected light , the centre of rings appear
dark due to :
*phase reversal only *path difference zero only
* intensity of light being maximum * both phase reversal and path difference
being zero.
10. Then
temperature of air rises, the speed of sound waves increase because:
*wavelength of wave increases *the frequency
of wave increase
* both frequency and wavelength
increases * neither frequency nor
wavelength increase
11. The
experimental evidence of transverse nature of light is:
*diffraction *interference * polarization *
dispersion
12. A lens
of linear magnification 2 is placed between as object and a fixed screen. If
size of image is 6cm, the size of the object will be:
*0.5cm *2 cm * 3 cm *
18 cm
13. A
bullet is fired horizontally with 20 m/s, the absence of air friction, its
horizontal velocity component after 2 s will be:
*40m/s *20m/s * 10 m/s * 5 m/s
14. The angular
momentum of particle moving in circle is conserved if:
*net torque acting on particle is
zero *the
acceleration of particle is zero
* net angular displacement of
particle is zero * net force
acting on particle is zero
15.If the velocity of a body is doubled and
mass is reduced to one-fourth of its initial value ,the kinetic energy will be:
*be doubled *four fold *
remains same * becomes
zero
16.An object is falling through a viscous
fluid with terminal velocity,its velocity:
*is increasing *is decreasing * remains same * becomes zero
17.A force of 8 N is applied to the spanner perpendicularly
at a distance of 0.15 m from the centre of nut ,the moment of force acting on
the nut is:
*1.2 Nm *1.5
Nm * 2.1
Nm * 3 Nm
________________________________
1. A
bus of weight 30000 N is moving with uniform velocity of 14 m/s, its
acceleration is:
*14 m/s2 *zero *7
m/s2 *9.8
m/s2
2. The
angular speed of the minute hand of a clock is:
*
3. A
projectile is fired at an angle
*the highest point *the point of projection
*all points of its path *the
point of landing on ground
4. Torque
is maximum when force:
*is parallel to moment arm *as
anti parallel to moment arm
*makes angle 60 degree with moment
arm * is perpendicular to
moment arm
5. Light
year is the unit of:
*time *distance *velocity *luminous
intensity
6. The
ocean tides are caused by:
*earth’s gravitational force only * moon’s gravitational force only
* sun’s gravitational force only * sun’s and
moon’s gravitational force
7. If
man a goes above the earth’s surface to a distance equal to thrice the earth’s
radius, the value of acceleration due to gravity at that point becomes:
*1/3 g *1/4 g *1/9 g *1/16 g
8. Both
kilowatt hour and electron volt are the unit of :
*power *energy *charge *angular momentum
9. If
the frequency of fifth harmonic of a vibrating string is 200 Hz ,its
fundamental frequency is:
*5 Hz *25 Hz *49 Hz *100 Hz
10. The
speed of sound in vacuum is:
*zero m/s *332
m/s *33200
cm/s` *3
x 108 m/s
11. The
distance between two consecutive nodes of a transverse stationary wave is equal
to:
*
12. The number of lines per cm of a diffraction
grating is 4000. Its grating element is:
*2.5 x 10-4 cm *2.5 x 10-6 cm *4
x 102 cm *4 x 105 cm
13. An astronomical telescope is focused at infinity.
The focal length of objective is 0.2 cm and that of the eye piece is 5cm, the
length of telescope is:
*2.5 cm
*4 cm *5.2 cm *25 cm
14. The ratio of SI unit of angular momentum to
linear momentum is:
*J.s *N/J *J.N *J/N
15. The number of significant figure in 1.6 x 10-19
is:
*2
*3 *4 *6
16. The magnitude of product k.(j x i):
*zero *1 *-1 ` *k
17. Stokes law is applicable to the:
*bodies resting on the surface of
liquid
*moving bodies through the viscous
medium
*moving bodies through the non
viscous medium
*moving bodies through vacuum
___________________________
1. The dimensions of G are:
*M-1L3T-2 *M2L2T-2 *M-1L2T-2 *MLT-2
2. If velocity of a body is decreasing, the
direction of acceleration is:
*in the direction of velocity
*opposite to the direction of velocity
*perpendicular to the direction of velocity
*60o to the direction of velocity
3.The rate of change of angular momentum is also
known as:
*Linear momentum *Torque *Force *Energy
4. At a distance, equal to twice of the radius of
the earth above the surface of the earth, the value of gravitational
acceleration will be:
*one half *one
fourth *Four times *one ninth
5.The range of audible sound is:
*1 Hz – 10 Hz *20Hz
– 20000Hz
*21000Hz – 24000Hz *25000Hz
– 50000Hz
6. The conditions of interference in thin film are
reversed due to:
*Diffraction *Phase
coherence *Refraction *Phase reversal
7.The magnifying power of a lens of focal length
1/2m is:
*1 dioptre *2
dioptres *50 dioptres *100 dioptres
8. This equation represents Bragg’s Law:
*mλ = 2d sinϴ *mλ
= d sinϴ *2mλ = d sinϴ *2mλ = 3d sinϴ
9.The distance between the principal focus and the
optical center is called:
*Aperture *Focal
length *Principal axis *Radius of curvature
10.If i, j and k are unit vectors then k. (i x j) is
equal to:
*zero *one *j *k
11.The angle between centripetal acceleration and
tangential acceleration in circular motion is:
*180o *0o *90o *45o
12. KitabulManazir was written by:
*Ibn-Al Haitham *Al
Razi *Abu-Rehan Al
Beruni *Jabir bin
Hayyan
13. One radian is equal to:
*1o *75.3o *57.3o *0.017o
14. One kilo watt hour is equal to:
*3.6 x 106 J *3.3 x 109 J *3.9 x 106 J *3.6 x 109 J
15. Two vibrating bodies, having slightly different
frequencies, produce:
*Echo *Beats *Resonance *Polarization
16. If A .B =0, A ×B =0 and A≠0 then
B is:
*equal to A * Zero *Perpendicular
to A *Anti-parallel to A
17. Kinetic friction is always:
*greater than static friction *Equal to static friction
*less than static friction *zero
_____________________
1. Electron volt is the unit of:
*Power *voltage *energy *charge
2. Intravenous injection by means of
silver syringe was initially used by:
*lbn-e-Sina *Omar Khayyam *Al-Beruni *Jabir bin Hayyan
3. The y-components of vector A =15
units when it forms an angle of 50° with positive x-axis is:
*9.6 units * -9.6 units * 11.5 units *-11.5 units
4. The rate of change of linear
momentum is:
*acceleration * torque *force * velocity
5. If 'F' be the limiting friction
and 'R' the normal reaction. Then co-efficient of static friction ‘μ’ is:
*μ= F/R *μ= R/F *μ=FR *μ= 1/FR
6. When torque acting on a system is
zero, this will be constant:
*force *angular momentum * linear momentum *
velocity
7. The unit of angular velocity is:
*radian/cm * metre/sec * radian/sec * radian/sect
8. The value of gravitational
constant 'G' was determined experimentally by:
*Cavendish *Newton *Joules *Huygen
9. Newton's rings illustrate the phenomenon
of:
*Polarization *diffraction * interference * dispersion
10. The final image formed by a
compound microscope is:
*virtual and diminished *real
and diminished
* real and magnified *virtual
and magnified
11. The dimensions of 'G' are
*ML-1T *ML-2T3 *M-1L3T-2 *ML2T-2
12. In thin film interference, the
positions of constructive and destructive interference are interchanged due to:
*Phase coherence *Phase reversal *Diffraction *Interference
13. The angle between centripetal
and tangential acceleration in circular motion is:
*180° * zero * 90° *45°
14. The velocity of a wave of
wavelength '
*
15. Polarization of light due to
tourmaline crystals takes place because of:
*Reflection * Absorption *
Refraction * Collision
16. Two convex lenses of same focal
length 'f' are combined together. The focal length of the combines lens is:
*2f *2⁄f * 2 + f * 2 – f
17. This one of the following is not
the unit of power:
* horse power * joule/sec *kilowatt hour *foot-pound/sec
_______________
1. If a person ascends form the
surface of the earth to a distance equal to the radius of the earth, the value
of g will be:
* 1/2 g * 1/4g *2g
*4g
2. Kilowatt hour is a unit of:
*Energy * Power *Time *Force
3. The earth quake waves are the
example of:
*Audible Waves * Infrasonic waves *Shock waves *Ultrasonic Waves
4. The unit of Luminous intensity
is:
*Decibel *Candela *Dioptre *w/m2
5. The distance between two
consecutive nodes of a stationary wave will be:
*
6. If an object is placed at
principle focus 'F' of a converging lens, the image will be formed:
*at F * at 2F *at infinity *
between focus & optical center
7. If A =5i+j and B =2k then A - B
is equal to:
*5i+j+2k *5i-j-2k *5i+j-2k *-5i-j+2k
8. Diffraction of light is a special
type of:
* reflection *refraction *interference
*polarization
9. An angle subtended at its centre
by an arc whose length is double to that of its radius is:
*84.3° *57.3° *114.6°
*168.6°
10. The length of a Galilean
telescope when focused for infinity is:
*fo/fe *fe /fo *fo
+ fe *fo
– fe
11. Artificial gravity can be
created in the spaceship by producing:
*translatory motion *vibratory motion *spin motion *orbital
motion
12. If mass and speed both are
doubled, the kinetic energy will be:
* double *four times *six times *eight times
13. The Noble price in Physics was
awarded to this Pakistani Scientist:
*Dr. Abdul Qadeer Khan *Dr. Saleem uz
Zaman Siddiqui
*Dr. Abdus Salam *Dr.
Samar Mubarak
14. In Young's double slit
experiment, the fringe spacing is:
*d
15. If the mass of the bob of a
simple pendulum is doubled, its time period will be:
*be doubled *become triple *remain
the same *halved
16. If A .B =0, A ×B =0 and A≠0 then
B is:
*equal to A * Zero *Perpendicular
to A *Anti-parallel to A
17. The dimension of Torque is:
* ML2 T * ML2
T-2 *
ML2T2 *MLT2
________________________
1. Power Law determines:
*power *work *intensity *loudness of
sound
2. If the average and instantaneous velocities of a body
are the same, the body will move with:
*Variable velocity *Uniform velocity
*Uniform acceleration *Variable
acceleration
3. The maximum number of beats per second which can
be detected by the human ear is:
*2
*3 *5 *7
4. In the terrestrial telescope, the central lens is
used to:
*erect the image *increase magnifying power
*both of these *none of
these
5. Two forces act together on an object; the
magnitude of their resultant is minimum when the angle between them is:
*00 *450 *900 *1800
6. A body falls freely .The distance covered by it
in 2 sec is:
*9.8 m
*19.6 m *39.2
m *100 m
7. The centre of mass of a body:
*always coincides with the centre
of gravity
* never coincides with the centre
of gravity
*coincides with the centre of
gravity only in uniform field
*is lower than the centre of
gravity
8. The weight of a man is 600 N at the earth, his
weight on the moon, where gm=g/6 will be:
*3600N
*600N *300N *100N
9. The angular momentum of a particle changes from 0
to 720 is in 4 sec, the magnitude of torque acting will be:
*1440J
*360J *180J *4.5J
10. The wave enters from one medium to another
medium, no change occurs in its:
*frequency *wavelength *amplitude *speed
11. Monochromatic yellow light is unable to show:
*reflection *refraction *dispersion *interference
12. Power of magnifying glass having focal length
5cm is:
*5 dioptre *10
dioptre *20
dioptre *50
dioptre
13. The dimension of force is:
*MLT
*MLT-1 *MLT2 * MLT-2
14. Light year is the unit of:
*time
*distance *velocity *luminous
intensity
15. The time period of simple pendulum depends upon:
*mass *length
*acceleration due to gravity *both length and
acceleration due to gravity
16. The sum of torques acting on a body is zero, and
then this will be constant:
*angular momentum *force
*linear momentum *pressure
17. The weight lifter consumes 500J of energy to
lift a load in 2 seconds, the power used by him is:
*125 watt *250
watt *500
watt *1000
watt
__________________
1. The length of Galilean telescope is equal to:
*fo/fe * fo- fe * fe- fo * fe + fo
2. The S.I unit of intensity level of sound is:
*watt *
diopter *
sone * decibel
3. If the axis of rotation of a rotating body passes
through the body itself, then its motion is called:
*linear motion * orbital
motion
* spin motion * S.H.M
4. If magnifying power of simple microscope is 6,
the focal length of lens used is:
*6 cm *
5 cm * 25 cm * -5 cm
5. The property of fluids due to which they resists
their flow is called:
*co efficient of friction * static
friction
* viscosity *
terminal velocity
6. The frequency of wave produced in a stretched
string depends upon:
*length *
tension *
linear density * all
of these
7. According to Maxwell theory, light travels in the
form of:
*transverse wave * longitudinal
wave
* mechanical wave * electromagnetic wave
8. At a distance equal to the radius of earth above
the earth’s surface, the value of gravitational acceleration becomes:
*half *
one forth * double * four times
9. The products of two numbers 5.642 and 4.71 in the
prospective significant number are:
*26.57382 * 26.574 * 26.6 * 26.5738
10. Huygens’s principle is used to:
*determine the speed of light * locate the
wave front
* expressed polarization *
find the refractive index
11. A bucket of mass 10 kg is moved downwards in the
gravitational field through a distance of 1 m. The work done in this case is
equal to:
*10 J *
98 J * -98 J * 0.1 J
12. The magnitude of torque depends upon:
*The distance of F from origin * The distance
of –F from origin
* Distance between F and –F *
None of these
13. Sin θ= θ if θ is specially less than:
*150 * 100 * 50 * 1 radian
14. The rate of doing work is zero when the angle
between force and velocity is:
*00 * 450 * 1800 * 900
15. If A=a i and B=bj , then A x B is equal to:
*0 *
ab k * -ab k * none of these
16. The velocity of a body is doubled and mass is
reduced to one fourth of its initial value, the K.E is:
*doubled * fourfold * same * halved
17. A helicopter weighing 3920 N is moving up with a
constant speed of 4 m/s. The force on the helicopter is:
*4720 N *
3920N * 3924
N * 3916N
___________________
1. Earthquake waves are the example of:
*audio waves * infrasonic waves
* Ultrasonic waves *
shock waves
2. The wave theory cannot explain:
*polarization *
photo electric effect
* interference *
diffraction
3. The magnifying power of a lens of focal length 25
cm is:
*1/2 *
1 *
zero *
2
4. Light year is the unit of:
*time
*distance *velocity *luminous
intensity
5. A one kilogram stone, falling freely from a
height of 10 meter, strikes the ground with a velocity of:
*14 m/s
*10 m/s *98 m/s *19.6 m/s
6. When the angular velocity of a disk increases,
angular acceleration and angular velocity are:
*parallel *non
parallel *perpendicular *none of
these
7. If the speed of moving body is halved, its
kinetic energy becomes:
*one fourth *half *three times *four times
8. Electromagnetic waves consist of oscillating
electric and magnetic fields, both are:
*parallel to each other *perpendicular to each other
*non parallel to each other *none of these
9. This is compression waves:
*light waves *x rays *sound
waves *radio waves
10. If two tuning forks of frequencies 256 Hz and
260 Hz are sounded together, the number of beats per second will be:
*3
*4 *5 *6
11. If A .B =0, A
×B =0 and A≠0 then B is:
*equal to A * Zero *Perpendicular
to A *Anti-parallel to A
12. The rate of change of angular momentum with
respect to time is:
*force * angular velocity
*angular
acceleration *torque
13. Two forces of equal magnitude but opposite in
direction and not acting on the same line constitute:
*a
couple *
power
*a
circle *a force
14. The acceleration of body moving down a frictionless
plane inclines at 300 will be:
*4.9
m/s2 *
9.8 m/s2
*98
m/s2 *10 m/s2
15. The work done by a conservative force along a
closed path is:
*positive * negative
*zero
*none
of these
16. The dimensions
of 'G' are
*ML-1T *ML-2T3 *M-1L3T-2 *ML2T-2
17. If one moves up from the surface
of earth to a distance equal to the radius of the earth the value of
acceleration due to gravity will be:
*1/2
g *1/4
g *2 g *4 g
________________
1. If we go up
from the surface of earth to a distance equal to the radius of the earth the
value of acceleration due to gravity will be:
*one fourth * one eighth *
one ninth * double
2. When a body
moves vertically upward, the work done will be:
*positive * negative * zero * maximum
3. By using
adjustable aperture of a lens we can reduce the defect of the lens which is
called:
*astigmatism * spherical aberration
* chromatic aberration * none of them
4. Which of the
following does not exhibit simple harmonic motion?
*A hanging spring supporting a
weight
* The balance wheel of a watch
* The wheel of an automobile
*the string of violin
5. Pitch depends
upon:
*frequency *
loudness
*time period *
distance
6. The velocity of sound in space is:
*zero m/s *332
m/s *33200
cm/s` *3 x 108
m/s
7. The cyclist cycling around a circular racing
track skids because:
*the centripetal force upon him is
less than the limiting friction
* the centripetal force upon him is
greater than the limiting friction
* the centripetal force upon him is
equal to the limiting friction
*none of them
8. In Young’s
double slit experiment; the condition for the constructive interference is that
the path diff. must be:
*an odd multiple of the half
wavelength
* an odd multiple of the whole
wavelength
* an integral multiple of the
wavelength
* an even number of the wavelength
9. If the power of
converging lens is 4 diopter, what is the focal length of the lens:
*20 cm *25 cm
*10 cm *50 cm
10. If A .B =0, A
×B =0 and A≠0 then B is:
*equal to A * Zero *Perpendicular
to A *Anti-parallel to A
11. The number of significant figure in 7.050 x 10-2
is:
*2
*3 *4 *6
12. Kitab ul Manazir is written by:
*Ibn ul Haitham *Ibn e Sina
*Al Razi *Al
Beruni
13. The dimensions of angular momentum are:
* M2L2T2 * M2L2T * ML2T * ML2T-1
14. Torque is defined as the time rate of change of:
* angular momentum * linear momentum
* angular velocity * angular acceleration
15. Stokes’s law holds good for:
* the bodies of all shapes * motion through
non viscous medium
* motion through vacuum * motion through
viscous medium
16. How many meters will a 20 kg ball, starting from
rest, falls freely in one second?
* 19.6 m *
9.8 m *
4 m * 4.9 m
17. The horizontal range of a projectile depends
upon:
* the angle of projection * ‘g’ at the place
* the velocity of projection * all
of them
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