Infrared radiations are detected by:

Write the range of frequencies of visible light.

$(i)$ The wavelength of microwaves is greater than that of $UV$-rays.
$(ii)$ The wavelength of $IR$ rays is less than that of $UV$-rays.
$(iii)$ The wavelength of microwaves is lesser than that of $IR$ rays.
$(iv)$ Gamma rays have the shortest wavelength in the electromagnetic spectrum.
Of the above statements:

Which of the following electromagnetic waves has the shortest wavelength?

Which of the following has the minimum frequency?

Which of the following colours of visible light has the lowest energy?