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Physics-

General

Easy

Question

In Young's double slit experimentshown in figure $S subscript 1 end subscript$ and $S subscript 2 end subscript$ arecoherentsourcesandSisthescreenhavingaholeata point1.0 mmawayfromthecentralline. Whitelight(400to700nm)issentthroughtheslits.Whichwavelengthpassingthroughtheholehasstrongintensity?

400nm
700nm
500nm
667nm

The correct answer is: 500nm

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A beam of light is incident on a glass slab ( $mu$ = 1.54) in adirectionas shown in the figure. The reflected lightisanalysed by a polaroid prism. On rotating the polaroid, (tan $57 to the power of ring operator end exponent$ =1.54)

A beam of light is incident on a glass slab ( $mu$ = 1.54) in adirectionas shown in the figure. The reflected lightisanalysed by a polaroid prism. On rotating the polaroid, (tan $57 to the power of ring operator end exponent$ =1.54)

Physics-General

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Physics-General

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In the figure shown, Lisa converging lens of focal length10cmandMisaconcavemirrorofradiusofcurvature20cm. A point object O is placed in front of the lens at adistance15cm.ABandCDareopticalaxesofthelensandmirror respectively. The distance of the final image fm:_medby this system from the optical centre of thelens is x26 cm.Findthevalueof xincm.[ThedistancebetweenCDandABis1cm]

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