Question

Boojho made light from a laser torch to fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.

Answer 1

Characteristics of Laser:

1. A laser's light is monochromatic, it has only one wavelength (color). Ordinary white light, on the other hand, is a blend of many different wavelengths (colors).
2. Lasers produce highly directional light. Laser light is emitted as a narrow beam in one direction only. Ordinary light is emitted in many directions away from the source, such as from the sun, a light bulb, or a candle.
3. A laser's light is said to be coherent, which means that its wavelengths are in phase in space and time.

Explanation:

No, Boojho won't be able to see the seven-color band because laser light is monochromatic.