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The Brewsters angle ib for an interface ...

The Brewsters angle `i_b` for an interface should be:

A

`30^(@) lt i_(A) lt 45^(@)`

B

`45^(@) lt I_(b) lt 90^(@)`

C

`i_(b) = 90^(@)`

D

`0^(@) lt i_(b) = 30^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`tan I_(b) = (mu_(2))/(mu_(1)) = (mu_(2))/(1)`
`mu_(2) gt 1`
`therefore tan_(b) gt 1`
`therefore 90^(@) gt I_(b) gt 45^(@)`
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Knowledge Check

  • Brewster's angle for water is

    A
    `43^(@)`
    B
    `57^(@)`
    C
    `45^(@)`
    D
    `53^(@)`

  • The Brewster angle for the glass air interface is 54.74^(@) if a ray of light going from air to glass strikes at an angle of incidence 45^(@) then the angle of refraction is

    A
    `60^(@)`
    B
    `30^(@)`
    C
    `25^(@)`
    D
    `54.74^(@)`

  • The Brewster angle for the glass-air interface is 53.74^(@) . If ray of light going from air to glass strikes at an angle of incidence 45^(@) ., then the angle of refraction is (tan 53.74^(@) = sqrt(2))

    A
    `60^(@)`
    B
    `30^(@)`
    C
    `25^(@)`
    D
    `54.74^(@)`

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    The Brwster angle of the glass-air interface is 54.74^(@) . If a ray of light going from air to glass strikes at an angle of incidence 45^@ , then the angle of refraction is

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