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Image of an object approaching a convex ...

Image of an object approaching a convex mirror of radius of curvature 20m slong its optical axis is observed to move from `(25)/(3)`m to `(50)/(7)`m in 30 seconds. What is the speed of the object in km per hour?

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MOTION-GEOMETRICAL OPTICS-Exercise - 4 | Level-II
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  2. A large glass slabe (mu=5//3) of thickness 8cm is placed over a point ...

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  3. Image of an object approaching a convex mirror of radius of curvature ...

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  4. Two transparent media of refractive indices mu(1) and mu(3) have a sol...

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  5. An initially parallel cylindrical beam travels in a medium of refracti...

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  6. An initially parallel cylindrical beam travels in a medium of refracti...

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  7. The speed of light in the medium is

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  8. A light ray travelling in glass medium is incident of glass- air inter...

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  9. Water (with refractive index = 4/3) in a tank is 18 cm deep. Oil of re...

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  10. A bi-convex lens is formed with two thin plano-convex lenses as shown ...

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  11. Most materials have the refractive index, n gt 1. So, when a light ray...

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  12. Most materials have the refractive index, n gt 1. So, when a light ray...

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  13. The image of an object, forme by a plano-convex lens at a distance of ...

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  14. A ray of light travelling in the direction (1)/(2)(hat(i)+sqrt(3)hat(j...

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  15. A right angled prism of refractive index mu(1) is placed in a rectangu...

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  16. A point source S is placed at the bottom of a tranparent block of heig...

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  17. Four combinations of two thin lenses are given in List I. The radius o...

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  18. A transparent thin film of uniform thickness and refractive index n(1)...

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  19. Consider a concave mirror and a convex lens (refractive index 1.5) of ...

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  20. Two identical glass rods S(1) and S(2) (refractive index=1.5) have one...

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