Q. The Laser is a beam of radiations which are – (Solved)
1. Non-coherent and monochromatic
2. Coherent and monochromatic
3. Non-coherent and non-monochromatic
4. Coherent and non-monochromatic
- b. Coherent and monochromatic
1. Non-coherent and monochromatic
2. Coherent and monochromatic
3. Non-coherent and non-monochromatic
4. Coherent and non-monochromatic