Question

Q18) Laser is ______

a) Highly monochromatic light

2) Highly coherent

3) Sharply focused

4) All of these​

Answer 1

Answer:

Option 4

All of these lol

Answer 2

Explanation:

4. All of these

laser has a highly monochromatic light, it is highly coherent and it's also sharply focused as we get a dot on the surface the light is indicating