This Video contains solution of the following MCQs.
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. 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
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