Q. Nickel zinc battery which is used in digital cameras and cordless telephone was invented by

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Q. Nuclear Fission was discovered in

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Q. Nuclear fission was discovered in experiment by

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Q. Nuclear power was first used to produce electricity in

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Q. With the speed of the object, the air resistance

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Q. The gravity is denoted by

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Q. The air resistance experience by a larger surface area is

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Q. The effect of an opposing force to the motion is known as

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Q. Air resistance depends on

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Q. The value of gravity is approximately

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Q. In the absence of air resistance, all objects fall under gravity with

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Q. If an object is released from rest from an unknown height and the acceleration due to free fall is 10 ms⁻², then the unknown height would be

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Q. All objects falling under gravity acceleration at the same

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Q. The acceleration due to free fall does not depend on the

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Q. A free falling object under gravity in air has a decreasing acceleration due to

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Q. A girl dropped a pen from the top of a building. If the pen is dropped 9 m from the ground, how long would the pen take to hit the ground?

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Q. If an object is released from rest from an unknown height and the acceleration due to free fall is 10 ms⁻², then the speed of the object just before it hits the ground would be

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Q. If you release a light piece of paper having a large surface area, the air resistance acting on it is

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Q. From the following, the very poor conductor of heat is

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Q. The vacuum flask is designed to keep liquids hot by minimizing heat loss in

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