| | | | | | Question Answer Tutorial - Physics->Gravitational | | | | | | | Question: If the angular speed of the earth is doubled, the value of acceleration due to gravity (g) at the
north pole
| | | Answer: Becomes half
| | | | | | | | | | | | Question: The weight of a body at the centre of the earth is:
| | | Answer: Zero
| | | | | | | | | | | | | Question: The time period of a simple pendulum on a freely moving artificial satellite is:
| | | Answer: Infinite
| | | | | | | | | | | | Question: At what height over the earths pole, the free fall acceleration decreases by one percent (assume the
radius of earth to be 6400 km):
| | | Answer: 64 km
| | | | | | | | | | | | Question: The radius of the earth is 6400 km and g=10 In order that a body of 5 kg weights zero at the
equator, the angular speed of the earth is:
| | | Answer: 1/800 radian/sec
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