Electromagnetic Spectrum

The frequency $2 \mathrm{MHz}$ belongs to

What is the cause of "Green house effect"?

A radar sends the waves towards a distant object and receives the signal reflected by object. These waves are

Radio waves do not penetrate in the band of

In which of the following, emission of electrons does not take place

Which of the following radiations has the least wavelength?

The wavelength of X-rays is of the order of _____.

Which of the following is the infrared wavelength?

Which of the following rays has maximum frequency?

Which among the following electromagnetic wave has the longest wavelength?

The range of wavelength of visible light is

The frequencies of $\mathrm{X}$-rays, $\mathrm{\gamma }$-rays and ultraviolet rays are respectively $a,b$ and $c$. Then

Radio waves with frequencies higher than television signals are

Which of the following is of shortest wavelength?