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Physics Experiment's Viva Questions

Some Physics Experiment's Viva Questions

1. The Moment Bar Viva Questions and Answers

Moment Bar
(i) What is the principle of the moment bar?

Ans: The principle of moment. That is, the algebraic sum of the moment of the forces acting on a rigid body is zero.

(ii) Why do you suspend the metre scale at the centre of gravity to find the weight of a body?

Ans: In order to make the moment of the weight of the scale about the point of suspension zero.

(iii) Can you find the relative density of a body using moment bar.

Ans: Yes

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