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The deviation delta of a ray on passing ...

The deviation `delta` of a ray on passing through a prism of small angle `A` is.

A

`(mu - 1)/(A)`

B

`(A)/(mu - 1)`

C

`(mu - 1) A`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • When a ray passes through a prism,

    A
    it goes undeviated
    B
    it remains parallel to the base
    C
    it bends towards the base
    D
    none of these

  • For a light ray passing through a prism

    A
    angle of deviation increases when angle of incidence is increased
    B
    angle of deviation decreases when angle of deviation is increased
    C
    When angle of incidence is increased or decreased from a particular value then in both cases angle of deviation increases.
    D
    Angle of deviation is approximately proportional to the refracting angle of prism provided prism is very thin.

  • The figures represent three cases of a ray passing through a prism of angle A. The case corresponding to minimum deviation is

    A
    1
    B
    2
    C
    3
    D
    None of these

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