Question
Chemistry Question on Structure of atom
Which of the following statements is false?
Photon has momentum as well as wavelength.
Splitting of spectral lines in electrical field is called Stark effect.
Rydberg constant has unit of energy.
Frequency of emitted radiation from a black body goes from a lower wavelength to higher wavelength as the temperature increases.
Frequency of emitted radiation from a black body goes from a lower wavelength to higher wavelength as the temperature increases.
Solution
A body which can emit or absorb radiation of all frequencies is known as blackbody and the radiation emitted by it is known as blackbody radiation.
At a given temperature, the spectral emissive power, of light emitted by a blackbody depends on the wavelength emitted. At a given temperature, the intensity of radiation emitted increases with increase of wavelength, reaches a maximum value and then decreases with further increase in wavelength.
With increase in the temperature of the blackbody, the wavelength corresponding to the most intense radiation decreases.
So, the correct option is (D).