The photoelectric effect demonstrates:

Arrange the following types of radiation in increasing order of frequency:
$(a)$ radiation from microwave oven
$(b)$ amber light from traffic signal
$(c)$ radiation from $FM$ radio
$(d)$ cosmic rays from outer space
$(e)$ $X$-rays

The wavelength of sodium light is $5.862 \times 10^{-16} \, m$. The energy of the photon will be .....

When radiation of $300 \ nm$ is shone on five metals, namely $Li, Mg, Ag, Cu,$ and $K$, the number of metals that show the photoelectric effect is:

What are the different regions of the electromagnetic spectrum?

When electromagnetic radiation of wavelength $300 \, nm$ falls on the surface of a metal,electrons are emitted with the kinetic energy of $1.68 \times 10^5 \, J \, mol^{-1}$. What is the minimum energy needed to remove an electron from the metal? $(h = 6.626 \times 10^{-34} \, J \, s, c = 3 \times 10^8 \, m \, s^{-1}, N_A = 6.022 \times 10^{23} \, mol^{-1})$