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Q. A temperature of 70°C is equal to
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Q. What causes changes in the colours of the soap or oil films for the given beam of light?
Q. Which one of the following is the best conductor of heat?
Q. The Carnot’s engine takes heat
Q. The unit of energy in MKS system is
Q. In a cup, tea cools from 90C to 80C in exactly one minute. It will cool from 70C to 60C in
Q. A rocket works on the principle of conservation of
Q. Which among the following is the most common cause of Sunburn?
Q. During hot weather, the fan produces a feeling of comfort. This is because
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