Question

Consider the following processes
(i) Electrical oscillation
(ii) Rapid deceleration of fast electrons
(iii) Atomic transition
Which of these are likely to produce visible light?

• A. (iii) only
• B. (ii) and (iii)
• C. (i) and (iii)
• D. (i), (ii) and (iii)

Answer 1

The correct option is D (i), (ii) and (iii)

Visible light means i.e visible to human eye.

It runs about $700-400㎚$

So Basically all of these options

1. Electrical oscillation
2. Rapid deceleration of fast electrons
3. Atomic transition

This is basically theoretical question.