Advertisements
Advertisements
Question
What do you understand by refraction of light?
Advertisements
Solution 1
The change in the direction of the path of light, when it passes from one transparent medium to another transparent medium, is called refraction of light.
Solution 2
In essence, the refraction of light is a surface phenomenon. "When a ray of light travels from one optical medium to another, it changes the direction of the path of light, and this is called the refraction of light."
APPEARS IN
RELATED QUESTIONS
What is refraction of light?
Fill in the following blank with a suitable word:
When light is reflected, the angles of incidence and reflection are ............ .
Write the word AMBULANCE as it would appear when reflected in a plane mirror. Why is it sometimes written in this way (as its mirror image) on the front of an ambulance?
A boy with a mouth 5 cm wide stands 2 m away from a plane mirror. Where is his image and how wide is the image of his mouth?
A ray of light goes from water into air. Will it bend towards the normal or away from the normal?
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
What is meant by 'refraction of light'? Draw a labelled ray diagram to show the refraction of light.
A ray of light travelling in air is incident on a rectangular glass block and emerges out into the air from the opposite face. Draw a labelled ray diagram to show the completer path of this ray of light. Mark the two points where the refraction of light takes place. What can you say about the final direction of ray of light?
Show the lateral displacement of the ray on the diagram.
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of refraction?
Light travels at a lower speed in water than in air.
We can see the sun even when it is little below the horizon because of ______.
The incident rays and refracting rays are on opposite sides of the normal.
The speed of light varies in different media.
Write scientific reason.
The sun appears on the western horizon for some time after sunset.
What is refractive index?

In the above diagram light is travelling through different media. It is noted by a scientist that ∠1= ∠3 = ∠4 but ∠2 < ∠1. Which of the following statement would be correct?
How do twinkling stars occur? (or) what is the cause of the twinkling of stars?
In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.
