Which of the following has lowest frequency? X-rays, `gamma`-rays,microwaves.

Which of the following has shortest frequency? X-rays, microwaves and ultra-violet 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?

Which of the following does not characterise X-rays?

Which of the fofllowing has shortest wave length?X-rays,microwaves and ultra-violet rays.

Define decay constant of a radioactive sample. Which of the following radiations, alpha-rays, beta -rays, gamma -rays travel with greatest speed?

Define decay constant of a radioactive sample. Which of the following radiations, alpha-rays, beta -rays, gamma -rays are similar to X-rays?

Define decay constant of a radioactive sample. Which of the following radiations, alpha-rays, beta -rays, gamma -rays are similar in nature to cathode rays?