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(a) Why are infrared waves often called heat waves? Explain. (b) What do you understand by the statement, "Electromagnetic waves transport momentum"? |
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Answer» Solution :Stating the FORMULA CALCULATING r Reason for CALLING IF rays as heat rays Infraced rays are readily absorbed by the (water) molecules in most of the substance and hence INCREASES their thermal motion. (If the student just writes that " infrated ray produce HEATING effects " . award mark only ) |
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