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Aim

Theory

Self Evaluation

Procedure

Simulation

Assignment

References

Feedback

Newton's Rings-Refractive index of liquid

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Beginner

Intermediate

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When we introduce a liquid drop between the lens and glass plate, the radius of rings:

a: reduce by a factor μ^½ Explanation

Explanation

b: increase by a factor μ Explanation

Explanation

c: increase by a factor μ^½ Explanation

Explanation

d: reduce by a factor μ Explanation

Explanation

When we incident the light normally,what happens to angle of incidence(i) and angle of reflection(r)

a: i>r Explanation

Explanation

b: i=r=0° Explanation

Explanation

c: i=r=90° Explanation

Explanation

d: i=90°,r=0° Explanation

Explanation

The light is allowed to fall obliquely on glass plate,then

a: diameter of rings increases Explanation

Explanation

b: no ring is observed Explanation

Explanation

c: diameter of rings decreases Explanation

Explanation

d: no change Explanation

Explanation

Gas inside sodium vapour lamp

a: Neon Explanation

Explanation

b: No gas Explanation

Explanation

c: Helium Explanation

Explanation

d: Mercury Explanation

Explanation

Which among the following causes the ring to deform from its circular shape?

a: Glass plate is optically flat. Explanation

Explanation

b: The surface of the ring may not be a part of perfect sphere. Explanation

Explanation

c: Constant thickness of air film. Explanation

Explanation

d: The surface of lens and glass plate is clean. Explanation

Explanation

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