Q 3. Two laboratory thermometers are marked as 'A' and 'B'. The bulb of thermometer 'A' is wrapped in a white cloth and that of thermometer 'B' in black cloth. Both the thermometers are placed in sunlight for an hour. What will happen after one hour ?
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After one hour, the thermometer A does not absorb heat as it is wrapped in a white cloth (reflector of light-white surface )and therefore there will be no temperature change in the thermometer. While in B, there is a change in temperature seen in the thermometer as it is wrapped with black cloth(good absorber of light-black surface ),as the black cloth absorbs light
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Answer:
THERMOMETER Q WILL SHOW HIGH TEMP THAN THERMOMETER B
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