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svp [43]
3 years ago
8

The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. A beam of white light in t

his glass strikes the glass–air interface at a 22.50° angle of incidence and refracts out into air. What is the angular separation between the red and violet components of the spectrum that emerges from the glass?4
Physics
1 answer:
Andru [333]3 years ago
4 0

Answer:

0.33 degree

Explanation:

refractive index for red light = 1.62

refractive index for violet light = 1.66

angle of incidence, i = 22.5 degree

Use Snell's law for the red light

refractive index for red light = Sin i / Sin r

Where r be the angle of refraction for red light

1.62 = Sin 22.5 / Sin r

Sin r = 0.2362

r = 13.66 degree

Use Snell's law for the violet light

refractive index for violet light = Sin i / Sin r'

Where r' be the angle of refraction for violet light

1.66 = Sin 22.5 / Sin r'

Sin r' = 0.23053

r' = 13.33 degree

Angular separation between red and violet components = r - r'

                                                                  = 13.66 - 13.33 = 0.33 degree

 

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Answer:

4 m/s

Explanation:

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u1 = 20 m/s, u2 = - 12 m/s

Let the speed of composite body is v after the collision.

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Momentum before collision = momentum after collision

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If it increased its speed steadily at a constant rate, then the average speed for the minute was

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3 years ago
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