Advertisements
Advertisements
Question
A ray of light passes from water to air. How does the speed of light change?
Advertisements
Solution
The speed of light increases as it passes from water to air.
APPEARS IN
RELATED QUESTIONS
Explain how spectrum is formed.
An object is viewed through a glass prism with its vertex pointing upwards. It appears to be displaced upward. Explain the reason.
“A ray of light incident on a rectangular glass slab immersed in any medium emerges parallel to itself.” Draw labelled ray diagram to justify the statement.
Which colour of light travels fastest in any medium except air?
How does the deviation produced by a prism depend on the refraction index of its material.
Which colour of light travels fastest in any medium except air?
Define the term refractive index of a medium in terms of velocity of light.
How does the angle of deviation produced by a prism depend on the angle of incidence of light at the prism surface? Draw a graph to illustrate your answer.
Complete the ray diagram showing its emergence into the air after passing through the prism.
Light passes through a rectangular glass slab and through a triangular glass prism. In what way does the direction of the two emergent beams differ and why?
