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प्रश्न
How does a ray of light bend when it travels from when it is normal to the interface of the two media.
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उत्तर
The ray goes straight into the second medium without any bending.
संबंधित प्रश्न
State the relation between the critical angle and the absolute refractive index of a medium.
What is total internal reflection?
State two conditions necessary for total internal reflection to occur.
Make the correct choices for each of the following :
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
How are critical angles related to the refractive index of the medium?
Complete the following diagram to show the path of the ray of a single colour in the diagram as if enters in and emerges out of the prism. Mark the angles wherever necessary. (Critical angle for glass = 42°).
Choose the correct option.
Angles of deviation for extreme colours are given for different prisms. Select the one having maximum dispersive power of its material.
Answer the following question.
Define the critical angle of incidence and obtain an expression for it.
A green light is incident from the water to the air-water interface at the critical angle (C). Select the correct statement.
Optical fibre communication uses the principle of ______.
