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A beam of monochromatic light is inciden...

A beam of monochromatic light is incident at `i= 50^(@)` on one face of an equilateral prism, the angle of emergence is `40^(@)`, then the angle of minimum deviation is :

A

`30^(@)`

B

`lt 30^(@)`

C

`le 30^(@)`

D

`ge 30^(@)`

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The correct Answer is:
B
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RESONANCE ENGLISH-DAILY PRACTICE PROBLEM-DPP No.9
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  7. Find the displacement of the ray after it imerges from CD .

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  9. A ray of light (R(1)) is incident on a glass slab at an angle equal to...

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  10. A concave spherical surface of radius of curvature 10 cm separates two...

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  11. The observer 'O' sees the distance AB as infinitely large. If refracti...

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  12. A beam of monochromatic light is incident at i= 50^(@) on one face of ...

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  13. The refractive angle of a prism is A, and the refractive of the materi...

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  14. A point moves in a straight line under the retardation av^(2), where '...

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  16. The acceleration-time graph of a particle moving along a straight line...

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  17. The velocity time graph of a linear motion is shown in the figure. The...

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  18. A particle is moving along a straight line with constant acceleration....

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