written 6.7 years ago by
neeta.vanage
• 860
|
modified 2.7 years ago
by
pedsangini276
• 4.8k
|
Subject :- Applied Physics 2.
Topic :- Laser.
Difficulty :- Low.
|
written 6.6 years ago by
neeta.vanage
• 860
|
LASER stands for light amplification by stimulated emission of radiation.
| LASER | Ordinary light |
|---|---|
| It is highly monochromatic | It is polychromatic |
| It is highly coherent | It is not coherent |
| Stimulated emissions are responsible | Spontaneous emissions are responsible |
| Highly directional | Not directional |
| Highly energetic | Less energy is associated |
| Example: He Ne, Nd:YAG | Example: sunlight, incandescent bulb |
and 3 others joined a min ago.