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38. Weights of 1g,2g,……..100g are suspended from the 1 cm, 2 cm, …… 100 cm, marks respectively of a light metre scale. Where should it be supported for the system to be in equilibrium

(a) 55 cm mark

(b) 60 cm mark

(c) 66 cm mark

(d) 72 cm mark

Ans. c

(39)

5/5 - (2 votes)

PrevPreviousAssertion : Mass and energy are not conserved separately, but are conserved as a single entity called mass-energy. Reason : Mass and energy conservation can be obtained by Einstein equation for energy.

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