Question

Explain how is LASER light different from incandescent light.

Answer 1

1.The normal light produces a broad spectrum of light but lasers gives a specific wavelength of visible light.

2.A normal source of light goes in every direction at the same time. but lasers emit light in a single, narrow beam, lighting only a small area.

3.Incandescen light is produced by alternating current through an high resistant filament. Laser light is produced by electrically exciting atoms until they release energy in the form of a photon.

4.A standard light bulb is wasted as heat but for laser,it is more efficient because more of the energy used to create the light is focused in a perticular region.