Advertisements
Advertisements
प्रश्न
What is meant by the refraction of light?
Advertisements
उत्तर
It is a phenomenon in which a ray of light deviates from its original path while travelling from one optical medium to another optical medium.
APPEARS IN
संबंधित प्रश्न
Draw the diagram of refraction of light in the glass slab
Why is the ratio of the velocities of light of wavelengths 4000Å and 8000Å in vacuum 1: 1?
Draw diagrams to show the refraction of light from glass to air. In diagram, label the incident ray, refracted ray, the angle of incidence (i) and the angle of refraction (r).
How does the speed of light change when it passes from glass to water?
The diagram alongside shows the refraction of a ray of light from air to a liquid.
- Write the values of (i) angle of incidence, (ii) angle of refraction.
- Use Snell’s law to find the refractive index of liquid with respect to air.
A coin is places at the bottom of a beaker containing water (refractive index = 4/3) to a depth of 12 cm. By what height the coin appears to be raised when seen from vertically above?
Explain briefly what causes the twinkling of stars at night.
Complete the ray diagram showing its emergence into the air after passing through the prism.
The diagram shows the path of a ray of light through a rectangular glass block placed in a liquid of uniform density.
(a) Does the light speed up or slow down in the glass,
(b) Give the reason for your answer.
What is lateral displacement?
