Which of these is not associated with camp ton effect?

(a)when energy exceeds 1.02MeV.
(b)energy of gamma-ray become less.
(c)operative within the range of 0.6Mev and 4MeV of energy.
(d)it doesn't result in low energy secondary radiation.

To determine which option is not associated with the Compton effect, let's briefly understand what the Compton effect is. The Compton effect refers to the scattering of X-rays or gamma-rays by free electrons. During this scattering process, the energy of the incident photon (X-ray or gamma-ray) changes, resulting in a shift in wavelength.

Now let's analyze each option to determine which one is not associated with the Compton effect:

(a) When energy exceeds 1.02MeV:
In the Compton effect, there is no specific threshold energy requirement. X-rays or gamma-rays with any energy can undergo Compton scattering. So, this option can be associated with the Compton effect.

(b) Energy of gamma-ray becomes less:
Yes, this statement is associated with the Compton effect. When a gamma-ray photon scatters off an electron, it loses energy, which leads to a decrease in the energy (or an increase in wavelength) of the scattered photon.

(c) Operative within the range of 0.6 MeV and 4 MeV of energy:
Yes, this statement is associated with the Compton effect. The Compton effect can occur over a broad range of energies, including energies between 0.6 MeV and 4 MeV.

(d) It doesn't result in low energy secondary radiation:
This statement is NOT associated with the Compton effect. In the Compton scattering process, a portion of the initial energy of the incident photon is transferred to the electron. As a result, the scattered photon carries less energy (or lower energy) compared to the initial photon. This scattered, lower-energy photon is the secondary radiation resulting from the Compton effect.

Therefore, the option not associated with the Compton effect would be:

(d) It doesn't result in low energy secondary radiation.