Question

4.
Radio waves of the shortest known wavelengths are called :
(1) X-rays
(2)
Alpha ryas
(3)
Beta rays
(4)
Gamma rays​

Answer 1

Gamma rays

Explanation:

Gamma rays have the shortest wavelengths of the electromagnetic spectrum, and the highest energies. Gamma rays have such short wavelengths, that astronomers usually discuss them in terms of energy. Gamma rays have energies greater than about 100 keV (keV stands for kilo-electron volt.

Answer 2

Radio waves of the shortest known wavelengths are called gamma rays (Option 4)

• Alpha, beta, and gamma radiations are examples of ionizing radiation.
• X-rays are non-ionizing in nature.
• The wavelength of X-rays ranges from 0.01 nm to 10 nm.
• Gamma rays have the shortest wavelength in the electromagnetic spectrum. (less than 0.01 nm)
• However, the penetration power of gamma rays is very low.