Advertisements
Advertisements
प्रश्न
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
विकल्प
dispersion
scattering
Refraction
Reflection
Advertisements
उत्तर
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called Refraction.
APPEARS IN
संबंधित प्रश्न
If an object is placed at a distance of 10 cm in from of a plane mirror, how far would it be from its image?
Which property of light makes a pencil cast a shadow when it is held in front of a light source?
A ray of light strikes a plane mirror such that its angle of incidence is 30°. What angle does the reflected ray make with the mirror surface?
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?
State and explain the laws of reflection of light at a plane surface (like a plane mirror), With the help of a labelled ray-diagram. Mark the angles of 'incidence' and 'reflection' clearly on the diagram. If the angle of reflection is 47.5°, what will be the angle of incidence?
With the help of a labelled ray-diagram, describe how a plane mirror forms an image of a point source of light placed in front of it. State the characteristics of the image formed in a plane mirror.
Write all the capital letters of the alphabet which look the same in a plane mirror.
A man stands 10 m in front of a large plane mirror. How far must the walk before he is 5 m away from his image?
A ray of light strikes a plane mirror PQ at an angle of incidence of 30°, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is ______.
A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.
When a ray of light passes from air into glass, is the angle of refraction greater than or less than the angle of incidence?
As light rays pass from water into glass, are they refracted towards the normal or away from the normal?
Which phenomenon of light makes the water to appear shallower than it really is?
Fill in the following blank with suitable word:
Light travelling along a normal is ...............refracted.
Show the lateral displacement of the ray on the diagram.
Water is optically .......... than air.
What is the cause of refraction of light when it passes from one medium to another?
A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray will differ from that of the incident ray: Speed, intensity, frequency, wavelength?
Fill in the blank and Explain the completed sentences.
The change in ______ of light rays while going from one medium to another is called refraction.
Choose and write the correct option.
If we gradually increase the angle of incidence of a ray of light passing through prism then …..
Due to _______ pencil looks bent in water, in the given experiment.
Write scientific reason.
The sun appears on the western horizon for some time after sunset.
Write scientific reason.
The coin disappears in a vessel as it is seen from a specific location. But as soon as the water is poured into the vessel to a certain level, the coin appears.
Write scientific reason.
A pencil appears to be broken near the surface of water.
Observe the given figure and name the following.
| Ray AB | |
| Ray NM | |
| Ray MD | |
| ∠ r |
Observe the given figure and write appropriate phenomenon of light in the box.
State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction r and v respectively, which of the following is correct?
The bending of light as it passes from one medium to another is called ______.
Mirage is an example of refraction and the total internal reflection of light.
A water tank appears shallower when it is viewed from the top due to refraction.
Under what circumstances there won’t be any refraction of light when it enters from one medium to another?
In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.
