20 Physics -- Dispersion

A glass prism with a refracting angle of 60∘ has a refractive index 1.52 for red light. A parallel beam of white light is incident on one face of the prism at an angle of incidence, which gives minimum deviation for red light. Find the angle of minimum deviation for red light?

A glass prism with a refracting angle of $60^{\circ}$ has a refractive index $1.52$ for red light. A parallel beam of white light is incident on one face of the prism at an angle of incidence, which gives minimum deviation for red light. Find the angle of minimum deviation for red light?

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Why is the sky blue?

The Short Answer:

Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air.Bluelight is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see ablue skymost of the time.

Why are a number of dark lines seen in the spectrum of light from the sun?

The black lines in the Sun's spectrum arecaused by gases on, or above, the Sun's surface that absorb some of the emitted light. Every gas (such as helium, hydrogen, oxygen, and so on) has a very specific set of frequencies that it absorbs.

20 Physics -- Dispersion

A glass prism with a refracting angle of 60∘ has a refractive index 1.52 for red light. A parallel beam of white light is incident on one face of the prism at an angle of incidence, which gives minimum deviation for red light. Find the angle of minimum deviation for red light?

0 Answers

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