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If a spherical mirror is dipped in water...

If a spherical mirror is dipped in water, does its focal length change ? 17. If a thin lens is dipped in water, does its focal length change ?

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HC VERMA ENGLISH-GEOMETRICAL OPTICS-Question For short Answer
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  5. Can a plane mirror ever form a real image ?

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  6. If a piece of paper is placed at the position of a virtual image of a ...

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  7. Can a virtual image be photographed by a camera ?

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  8. In motor vehicles, a convex mirror is attached near the driver's seat ...

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  9. If an object far away from a convex mirror moves towards the mirror, t...

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  10. Suppose you are inside the water in a swimming pool near an edge. A fr...

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  11. A thin converging lens is formed with one surface convex and the other...

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  12. A single lens is mounted in a tube. A parallel beam enters the tube an...

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  13. An air bubble is formed inside water. Does it act as a converging lens...

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  14. Two converging lenses of unequal focal lengths can be used to reduce t...

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  15. If a spherical mirror is dipped in water, does its focal length change...

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  16. If a thin lens is dipped in water, does its focal length change ?

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  17. Can mirrors give rise to chromatic aberration ?

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  18. A laser light is focussed by a converging lens. Will there be a signif...

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