planck's constant*Numberphotons* speedligh/wavelength = mcDeltaTemp
on m, the mass of water, make certian it is in the right units, depending on c.
Water is exposed to infrared radiation of wavelength 3.0×10^−4 cm. Assume that all the radiation is absorbed and converted to heat.
How many photons will be required to raise the temperature of 1.7 g of water by 2.2 K?
1 answer