It is the thickness of the material at which the radiating material is reduced to its half-life.

It is the one half of the thickness of the material required to reduce radiation entering it.

It is the thickness of the material at which the intensity of radiation entering it is reduced by one half

None of these

Centrifugal compressors

Axial flow compressors

Both (A) and (B)

None of these

Isentropic process

Isosceles Process

Isoclinic process

None of these

(a) Otto Cycle

(b) Joule Cycle

Brayton Cycle

Both (B) and (C)

(a) They can operate in airless vacuum

(b) They have their own captive oxygen supply

Both (A) and (B)

None of these