Which one of the following statements are true?

Question

1. The product of wavelength and frequency of light is a constant
2. As the energy increases, the frequency of the radiation decreases.
3. As the wavelength of light increases, the frequency increases.



Answer Choices:
a. 1 only
b. 2 only
c. 3 only
d. 1 and 3 only
e. 2 and 3 only

Answer 1

The equations involved are:
a) freq*wavelength = velocity of wave
b) energy of radiation E = h*freq, where h is Plank's constant.
You can work out from these that the choice should be a.

Answer 2

A)

Answer 3

c

Coach

Answer 4

C