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A ray of light from a rarer medium strik...

A ray of light from a rarer medium strikes a denser medium.
The reflected and refracted rays make an angle of `90^@` with each other .the angles of reflection and refraction are r and r' .The critical angle would be

A

`sin^(-1) (tan r)`

B

`sin^(-1) (tan i)`

C

`sin^(-1) (tanr')`

D

`tan^(-1) (sin i)`

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
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  3. A ray of light from a rarer medium strikes a denser medium. The reflec...

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  13. A short linear object of length b lies along the axis of a concave mir...

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  15. A virtual image larger than the object can be produced by

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  17. In case of spherical mirrors,which of the followed do/does not depend ...

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  18. Light appears to travel in a straight lines,since

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