Bulbs vs Lasers

Bulbs emit light in a single wavelength, while lasers emit light in multiple wavelengths.

Bulbs emit coherent light, while lasers emit incoherent light.

Bulbs emit light through incandescence, while lasers emit light through stimulated emission. (correct)

Bulbs emit light in a straight line, while lasers emit light in a scattered pattern.

The light emitted by a bulb is monochromatic and incoherent.

The light emitted by a bulb is polychromatic and coherent.

The light emitted by a bulb is polychromatic and incoherent. (correct)

The light emitted by a bulb is monochromatic and coherent.

Cutting and welding materials (correct)

Illuminating a photograph

Decorative lighting

Lighting up a room