Page 1 - HA-refractive index

Objective Questions:

MCQ: The refractive index of water is
A. 0.33

B. 0.5
C. 1.5
D. 1.33
MCQ: Each pair of objects is identified by
A. refractive index
B. nature
C. type
D. shape
MCQ: More dense the object
A. less the light refracts
B. less the light reflects
C. more the light refracts
D. more the light reflects
MCQ: 'Refractive index' is equal to
A. speed of light in material /speed of light in vacuum
B. speed of light in material/speed of light in air
C. speed of light in vacuum/speed of light in material
D. speed of light in vacuum/speed of light in air
MCQ: Light bends in all materials at
A. same angle
B. different angles
C. nearly same angles
D. opposite angles
Subjective Questions:

NUMERICALS

1. The refractive index of medium ‘X’ with respect to medium ‘Y’
is 2/3 and refractive index of medium ‘Y’ with respect to
medium ‘Z’ is 4/3. Find the refractive index of medium ‘Z’ with
respect to medium ‘X’.
2. The refractive index of water with respect to air is 4/3. What is
the refractive index of air with respect to water?
3. The refractive index of glass with respect to air is 1.65 and
that of water w.r.t air is 1.33. Calculate refractive index of
water w.r.t to glass.
4. In an experiment with a glass slab, a student observed that a
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ray of light incident at an angle of 60 with the normal on one
face of the slab, after refraction, strikes the opposite face of the
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slab before emerging out in air making an angle of 42 with the