JEE PHYSICS MCQ: GRAVITATION

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Two types of balances, the beam balance and the spring balance are commonly used for measuring weight in shops. If we are on the moon, we can continue to use

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Correct option: A

Only the beam type balance without any change

Option A (Only the beam type balance without any change) is correct because the beam balance compares masses, while the spring balance measures weight, which changes with gravity.

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11.2\mathrm{\;\;km}{\mathrm{s}^{ - 1}}

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{45^0}

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v_e

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\theta

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Statement II: As observed by another astronaut's in the same satellite, force of gravity and centrifugal force balance each other. An iron ball and a wooden ball of the same radius are released from a height 'h' in vacuum. The time taken by both of them to reach the ground is