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A radiation P is focused by a proper device on the bulb of a thermometer. Mercury in the thermometer shows a rapid increase. The radiation P is : (a) infrared radiation (b) visible light (c) ultraviolet radiation (d) X -rays. |
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Answer» A radiation P is focused by a proper device on the bulb of a thermometer. Mercury in the thermometer shows a rapid increase. The radiation P is : (a) infrared radiation (b) visible light (c) ultraviolet radiation (d) X -rays. |
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