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n number of identical equilateral prisms are kept in contact as shown in figure. If deviation through a single prism is `delta`. Then (n,m are integers)

A

if n=2m, deviation through n prisms is zero

B

if n=2m+1, deviation through system of n prism is `delta`

C

if n=2m, deviation through system of n prism is `delta`

D

if n=2m+1, deviation through system of n prism is zero

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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE-II (LEVEL-II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS))
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  9. The time required for the light to go from A to B, when a ray of lilgh...

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  10. The apparent depth of water in cylindrical water tank of diameter 2R c...

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  11. A ray of light travels from a medium of refractive index mu to air. It...

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  13. A glass slab of thickness 3 cm and refractive index 3/2 is placed on i...

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  14. Solar rays are incident at 45^(@) on the surface of water (mu=4//3). T...

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  15. A ray of light is incident normally on one face of 30^(@) - 60^(@) - 9...

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  16. Light is incident from a medium A to medium B. The graph of sine of an...

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  17. The angle of deviation (delta) vs angle of ancidence (i) is plotted fo...

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  18. For maximum deviation D("max").

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  19. A ray of monochromatic light is incident on the plane surface of separ...

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  20. n number of identical equilateral prisms are kept in contact as shown ...

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