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Acids, Bases And Salts

Question
CBSEENSC10014802
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After tracing the path of a ray of light passing through a rectangular glass slab for four different values of the angle of incidence, a student reported his observations in tabular form as given below:


The best observation is:

  • I

  • II

  • III

  • IV

Solution

A.

I

For glass slab,
angle space straight i space equals space angle straight e
Refractive index of glass = 1.5
fraction numerator sin space 30 to the power of straight o over denominator sin space 19 to the power of straight o end fraction space almost equal to space 1.5 angle 30 to the power of o space almost equal to space angle 29 to the power of o

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