Question
Which of the following statements is false ?
A.
Photon has momentum as well as wavelength.
B.
Splitting of spectral lines in electrical field is called Stark effect.
C.
Frequency of emitted radiation from a black body goes from a lower wavelength to higher wavelength as the temperature increases.
D.
Rydberg constant has unit of energy.
Answer :
Frequency of emitted radiation from a black body goes from a lower wavelength to higher wavelength as the temperature increases.
Solution :
When a black body is heated, more and more energy is absorbed by its atoms and they emit radiations of higher and higher frequency, i.e., black body emits radiation from higher wavelength to lower wavelength.