Which of the following are high-enegry radiations?
(i) Ultraviolet rays (ii) Infrared rays
(iii) `X` rays (iv) `gamma` rays

Which of the following pairs constitute very similar rediations? (i) Hard ultraviolet rays and soft X-rays (ii) Soft ultraviolet rays and hard X-rays (iii) Very hard X-rays and low-frequency gamma -rays (iv) Soft X-rays and gamma -rays

When ultraviolet radiation is incident on a surface, no photoelectrons are emitted. If another beam causes photoelectrons to be emitted from the surface, it may consist of (i) radio waves (ii) infrared rays (iii) X-rays (iv) gamma rays

When ultraviolet radiation is incident on a surface, no photoelectrons are emitted. If another beam causes photoelectrons to be emitted from the surface, it may consist of (i) radio waves (ii) infrared rays (iii) X-rays (iv) gamma rays

Explain briefly (i) Infra red rays, (ii) Ultra violet rays, (iii) Gamma rays.

Which of the following has shortest frequency-Microwaves, X-Rays, Ultraviolet rays?

Which of the following has shortest frequency-Microwaves, X-rays, Ultraviolet rays?