Figure shows a solid transport semi cylinder of radius 10 cm. A screen is placed at a distance 60 cm from O. A narrow beam is incident along X-axis at O. If cylinder starts rotating about O in clockwise direction with angular speed 6 rad//s spot formed on screen will move upward (Refractive index of material of cylinder=(5)/(3)) At waht distance from C bright spot on screen will disappear.

Figure shows a solid transport semi cylinder of radius 10 cm. A screen

1.	Figure shows a solid transport semi cylinder of radius 10 cm. A screen is placed at a distance 60 cm from O. A narrow beam is incident along X-axis at O. If cylinder starts rotating about O in clockwise direction with angular speed 6 rad//s spot formed on screen will move upward (Refractive index of material of cylinder=(5)/(3)) At waht distance from C bright spot on screen will disappear.
Answer» `100 CM` `80 cm` `120 cm` `100 cm` SOLUTION :N//a

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