Advertisements
Advertisements
प्रश्न
A ray of light passes from water to air. How does the speed of light change?
उत्तर
The speed of light increases as it passes from water to air.
APPEARS IN
संबंधित प्रश्न
Draw the diagram of refraction of light in the glass slab
How is the reflection of light ray from a plane mirror different from the refraction of light ray as it enters a block of glass?
How is the refractive index of a medium related to the speed of light in it?
What is meant by the statement the critical angle for diamond is 24°?
How does the deviation produced by a prism depend on the refraction index of its material.
The critical angle for glass-air interface is :
Rewrite the following statement by selecting the correct option:
If a ray of light strikes a glass slab at an angle of 600 with the surface of the slab, the angle of incidence must be __________________.
What should be the ratio of the speed of light through the liquid to the speed through the glass so that there is no refraction of light at the boundaries of the glass block when the system is illuminated by the light of one colour?
Trace a ray of light incident at 30° on a surface if travelling from air to glass. What is the angle of refraction in this case? (R.I. for glass = 3/2).
Write the approximate values of speed of light in (i) air and (ii) glass. Use these values to calculate the refractive index of glass with respect to air.
