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A light ray I is incident on a plane mir...

A light ray `I` is incident on a plane mirror `M`.The mirror is rotated in the direction as shown in the figure by an arrow at frequency `(9)/(pi) "rev"//"sec"`,The light reflected by the mirror is received on the wall `W` at a distance `10m`from the axis of rotation .When the angle of incidence becomes `37^(@)`find the speed of the spot (a point) on the wall?

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The correct Answer is:
`1000 m//s`
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PHYSICS GALAXY - ASHISH ARORA-GEOMETRICAL OPTICS-Unsolved Numerical Problems
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  10. in figure shown AB is a plane mirror of length 40cm placed at a hei...

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  11. A plane mirror of circular shape with radius r=20cm is fixed to the ce...

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  12. A room contains air in which the speed of sound is 340m//s. The walls ...

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  13. A glass prism has refractive index sqrt(2) and refracting angle 30^(@...

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  14. Photograph of the ground are taken form an air-craft ,flying at an alt...

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  15. An equilateral prism deviates a ray through23^(@)for two angles of inc...

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  16. A plano convex lens (mu=1.5) has a maximum thickness of 1mm .If diam...

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  17. A convex lens of focal length 1.5m is placed in a system of coordinate...

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  18. A ray in incident normally on a right angle prism whose refractive ind...

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  19. A short-sighted man, the accommodation of whose eye is between 12 cm a...

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