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Assertion angle of deviation depends on ...

Assertion angle of deviation depends on the angle of prism.
Reason For thin prism =`(mu-1)A`
Where =angle of deviation
`mu=refractive index, A=angle of prism

A

Both assertin and reason are true and reason is the correct explanation of assertion

B

Both assertion and reason are true but reason is not the correct explanation of assertion

C

Assertion is true but reason is flase

D

Both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
The relation between angle of dieviation `delta` for a thin prism an angle of prism and refractive index `(mu)` of material of prism is given buy `delta = (mu-1)A`
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Assertion : Angle of deviation depends on the angle of prism. Reason : For thin prism, del = (mu - 1) - A .

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The angle of minimum deviation measured with a prism is 30^(@) and the angle of prism is 60^(@) . The refractive index of prism material is

A small angled prism (mu = 1.62) gives a deviation of 4.8 . Calculate the angle of prism.

A ray of light falling at an angle of 50^@ is refracted through a prism and suffers minimum deviation. The angle of the prism is 60^@ . Find the angle of minimum deviation and refraction index of the material of the prism.

A prism is made of glass of unknown refractive index. A parallel beam of light is incident on a face of the prism. By rotating the prism, the minimum angle of deviation is measured to be 40^@ . What is the refractive index of the prism ? If the prism is placed in water (mu = 1.33) , predict the new angle of minimum deviation of the parallel beam. The refracting angle of prism is 60^@ .

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