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Solar rays are incident at 45^(@) on the...

Solar rays are incident at `45^(@)` on the surface of water `(mu=4//3)`. The length of the shadow of a pole of length 1.2 m formed at the bottom of the pond is `3.3/n` where n is (if the pole is vertical assuming that 0.2 m of the pole is above the water surface)

A

40

B

4

C

3

D

0

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE-II (LEVEL-II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS))
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  2. Four similar prisms of angle of prism are arranged. Which of the follo...

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  3. A light ray is incident upon a prism in minimum deviation position and...

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  4. A ray of light strikes a plane mirror at an angle of incidence 45^@ as...

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  5. The xz plane separates two media A and B with refractive indices mu(1)...

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  6. A microscope is focussed on a point object, and then its objective is ...

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  7. It is found that electromagnetic signals sent inside glass sphere from...

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  8. A light ray is incident on a transparent slab of refractive index mu=s...

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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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  12. A man of height 1.47 m stands on a straight road on a hot day. The ver...

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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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