Question

You must have seen chandeliers having glass prisms. The light from a tungsten bulb gets dispersed while passing through these prisms and we see coloured spectrum. If we use an LED light instead of a tungsten bulb, will we be able to see the same effect?

Answer 1

Not all of the wavelengths of light emitted by LEDs (light-emitting diodes) fall within the 400–700 nm range. As a result, its spectrum differs from that of sunlight and light from a tungsten bulb.