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प्रश्न
Draw the diagram of a right-angled isosceles prism which is used to make an invented image erect.
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उत्तर
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संबंधित प्रश्न
State the relation between the critical angle and the absolute refractive index of a medium.
Prove the statement.
A rainbow is the combined effect of the refraction, dispersion, and total internal reflection of light.
The adjacent diagram shows two right-angled isosceles prisms A and B. Complete the diagram to show the path of rays P and Q emerging out of the prism B. What principles have you used to complete the diagram?
Choose the correct option.
Select the WRONG statement.
Solve Numerical example.
A monochromatic ray of light is incident at 37° on an equilateral prism of refractive index 3/2. Determine angle of emergence and angle of deviation. If angle of prism is adjustable, what should its value be for emergent rays to be just possible for the same angle of incidence?
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]
What are the conditions to achieve total internal reflection?
A green light is incident from the water to the air-water interface at the critical angle (θ). Select the correct statement.
- Assertion (A): Propagation of light through an optical fibre is due to total internal reflection taking place at the core-cladding interface.
- Reason (R): Refractive index of the material of the cladding of the optical fibre is greater than that of the core.
Small air bubbles rising up a fish tank appear silvery when viewed from some particular angle is due to the ______.
