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Q. Heat energy is transferred by conduction whenever molecules
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Q. Magnetic keepers are used to protect magnets from
Q. The critical angle of a glass slab increases with
Q. The reason for a swimming pool to appear less deep than the actual depth is
Q. If a lift is going up with acceleration, the apparent weight of a body is
Q. If a bicycle of mass 10 kg moves at a speed of 20 m/s, then the kinetic energy of the bicycle is:
Q. Which one of the following laser types is used in a laser printer?
Q. With the rise of temperature, the speed of sound in a gas
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