Advertisements
Advertisements
प्रश्न
When a ray of light travels from water to air, it bends ............. the normal.
Advertisements
उत्तर
When a ray of light travels from water to air, it bends away from the normal.
APPEARS IN
संबंधित प्रश्न
What is refraction of light?
An extended object in the form of an arrow pointing upward has been placed in front of a plane mirror. Draw a labelled ray-diagram to show the formation of its image.
Explain with the help of a labelled ray diagram, why a pencil partly immersed in water appears to be bent at the water surface. State whether the bending of pencil will increase or decrease if water is replaced by another liquid which is optically more dense than water. Give reason for your answer.
Water is optically denser than glass.
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 ______.
Identify the wrong figure from the following.
Write scientific reason.
A pencil appears to be broken near the surface of water.
Match the following:
| Column I | Column II | ||
| 1. | r > 90 | a. | Light gazes at the surface of separation between the two modes. |
| 2. | r = 90 | b. | No refraction. |
| 3. | r < 90 | c. | Refracted ray away from the normal |
In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.
