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A ray of light passes through an equilateral glass prism will be such a manner that the angle of incidence is equal to the angle of emergence and each of these angles is equal to 3/4 of the angle of the prism. The angle of deviation is

A

`45^(@)`

B

`39^(@)`

C

`60^(@)`

D

`30^(@)`

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE II LEVEL -I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  2. The refractive indices of glycerine and diamond with respect to air ar...

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  3. A monochromatic light passes through a glass slab (mu = (3)/(2)) of th...

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  4. A glass slab of thickness 8 cms contains the same number of waves as 1...

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  5. The optical path of a monochromatic light is the same if it goes throu...

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  6. A ray of light incidents on a refracting surface at 30^(@) with the su...

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  7. A unit vector along the incident ray of light is hat(i). The unit vect...

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  8. The velocities of light in two different media are 2*10^8m/s and 2.5 *...

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  9. Light takes t(1) second to travel a distance x cm in vacuum and the sa...

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  10. A ray of light from a denser medium strikes a rare medium as shown in ...

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  11. The refractive index of the core of an optical fibre is mu(2) and that...

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  12. The refractive index of a prism for a monochromatic wave is sqrt(2)and...

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  13. A trianglular prims of glass is shown in the figure. A ray incident no...

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  14. Under minimum deviation condition in a prism, if a ray is incident at ...

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  15. A ray of light passes through an equilateral glass prism will be such ...

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  16. The refractive indices of violet and red light are 1.54 and 1.52 respe...

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  17. The refractive indices of crown glass prism of C,D and F lines are 1.5...

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