Explain Newton’s Law
First law: Object remains in a state of rest or in a state with constant velocity, unless compelled to change by a net force. The…
Physics
Conservative and non-Conservative force
Conservative force: A force is said to be conservative if the work done by the force in moving a body along a closed path is…
State and Prove the Perpendicular Axis Theorem
The theorem states that “the moment of inertia of a plane lamina about an axis perpendicular to its plane is equal to the sum of the moments…
What are the fundamental forces?
The force whose actions-reactions are seen in nature is called fundamental forces. In other words, those forces which are fundamental and do not originate from…
What are inertia of rest and inertia of motion?
The inertia of a body is defined as that property of it, which tends to resist a change in its state of rest or of…
How many kinds of fixed points in thermometer scale?
The fixed points used in temperature scale are: (i) Lower fixed point or ice point or freezing point and (ii) Upper fixed point or steam…
What is Pyrometer?
The device which is used for measurement of very high temperature is known as Pyrometer. The meaning of ‘Pyros’ is fire. So Pyrometer is used…
Construction of Thermometer
Thermometers consist of three basic elements: spirit-filled liquid, which response to changes in heat and cold; a glass tube to house the temperature-measuring liquid; and…
Distinguish between PWBA and DWBA
Distinguish between PWBA and DWBA are: PWBA : 1. It is Plane Wave Born Approximation. 2. In this approximation, the incident wave is considered as…
Free vibration and Forced vibration
Free vibration: When a body capable of vibration is displaced slightly from its equilibrium position and then left to itself, the body begins to vibrate…
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