1.

Photons absorbed in matter are converted to heat. A sourceemitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversion(a) decreases with increasing n, with ν fixed. (b) decreases with n fixed, ν increasing (c) remains constant with n and ν changing such that nν = constant.(d) increases when the product nν increases.

Answer» Photons absorbed in matter are converted to heat. A source
emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversion
(a) decreases with increasing n, with ν fixed. (b) decreases with n fixed, ν increasing (c) remains constant with n and ν changing such that nν = constant.
(d) increases when the product nν increases.


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