Showing posts with label AKUEB/Punjab Board. Show all posts
Showing posts with label AKUEB/Punjab Board. Show all posts
Interpret velocity-time graph for constant direction and understand significance of area under velocity-time graph.
VELOCITY-TIME GRAPH FOR CONSTANT DIRECTION: When an object is moving with a constant velocity, the line on the graph is horizontal. When an object is movin…
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Derivation of Gravitational Potential Energy (without using Calculus)
The potential energy of a body at height “h” from centre of earth w.r.t. a point at which the gravitational field is zero i.e. a point which has no potenti…
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Q. Explain Principle, Purpose and Features of Nuclear Reactors
NUCLEAR REACTOR DEFINITION: Nuclear reactor is a device which is used to perform controlled fission reaction and extract the hidden energy from the nucle…
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WORK-ENERGY RELATION
WORK ENERGY EQUATION DERIVATION: Let us consider a body of mass “m” is placed at point A at a height h from the surface of earth.At this …
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KINETIC MOLECULAR THEORY AND EFFECT OF PRESSURE ON GASES
DOWNLOAD AS PDF: https://drive.google.com/open?id=0B1t3t3Mn8__CVGJ4Y1FQaXZCV3M
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SIGNIFICANT FIGURES AND RULES FOR COUNTING SIGNIFICANT FIGURES
SIGNIFICANT FIGURES “All the accurately known digits in a value and the first doubtful digit are known as significant figures.” In the mea…
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The Cathode Ray Oscilloscope
Introduction The following should give the student some familiarisation with the function and uses of the cathode ray oscilloscope (C.R.O.). Consider a s…
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What is Elastic Potential Energy?
Elastic Potential Energy Any object than can be deformed (have its shaped changed) and then return to its original shape can store elastic potential energy.…
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Young's Double Slit Experiment
This is a classic example of interference effects in light waves. Two light rays pass through two slits, separated by a distance d and strike a screen a dista…
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Electromagnetic Induction:C.R.Q's /Questions
15.1 Does the induced emf in a circuit depend on the resistance of the circuit?does the induced current depend on the resistance of the circuit? Ans. The …
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The ratio of the dimensions of G to those of g is..... ?
The dimension of G can be found by the formula F=Gm 1 m 2 /r 2 i.e. G=F r 2 / m 1 m 2 Dimensions: [F]=MLT -2 [r]=L [m]=M S…
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GEIGER COUNTER
INTRODUCTION Geiger counter is a portable device which is used for the detection and counting of ionized particles and radiation CONSTRUCTION It con…
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WILSON CLOUD CHAMBER
INTRODUCTION It is an instrument used for the detection and identification of the path of subatomic particles. In Wilson Cloud Chamber, paths of subatomi…
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Why pair production can not take place in vacuum?
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The most basic conservation laws are conservation of energy, conservation of momentum and conservation of angular momentum. These laws are a result of the inv…
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