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प्रश्न
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
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उत्तर
Angle of deviation is the angle which the emergent ray makes with the direction of incident ray.
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संबंधित प्रश्न
The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.
Total internal reflection occurs only when a ray of light passes from a ______ medium to a ______ medium.
Write the necessary conditions for the phenomenon of total internal reflection to
occur ?
Write the relation between the refractive index and critical angle for a given pair of optical media?
The observation made by Swarali while doing the experiment is given below. Based on these write answers to the questions:
Swarali found that the light ray travelling from the denser medium to rarer medium goes away from the normal. If the angle of incidence (i) is raised by Swarali, the angle of refraction (r) went on increasing. However, after certain value of the angle of incidence the light ray is seen to return back into the denser medium.
Questions:
- What is the specific value of∠i called?
- What is the process of reflection of incident rays into denser medium called?
- Draw the diagrams of three observations made by Swarali.
Choose the correct option.
Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in
A spherical marble, of refractive index 1.5 and curvature 1.5 cm, contains a tiny air bubble at its centre. Where will it appear when seen from outside?
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
The resultant `vec"R"` of `vec"P"` and `vec"Q"` is perpendicular to `vec"P"`. Also `|vec"P"|=|vec"R"|`. The angle between `vec"P"` and `vec"Q"` is ______.
[tan 45° = 1]
A particle is projected such that the horizontal range and vertical height are equal. Then the angle of projection is :
