Advertisements
Advertisements
Question
Fill in the following blank with suitable word:
Light bends when is passes from water into air. We say that it is ............
Advertisements
Solution
Light bends when is passes from water into air. We say that it is refracted.
APPEARS IN
RELATED QUESTIONS
Fill in the following blank with a suitable word:
When light is reflected, the angles of incidence and reflection are ............ .
The letter F is placed in front of a plane mirror:
How would its image look like when seen in a plane mirror?
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?
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?
Write all the capital letters of the alphabet which look the same in a plane mirror.
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 ______.
Name the phenomenon due to which a swimming pool appears less deep than it really is.
What is meant by 'refraction of light'? Draw a labelled ray diagram to show the refraction of light.
Water is optically .......... than air.
Draw suitable diagrams to illustrate how a beam of light incident parallel to the principal axis is reflected by:
(a) a concave mirror, and (b) a convex mirror
Define the principal focus of a concave mirror.
Light changes its direction when going from one transparent medium to another transparent medium. This is called _______.
Write scientific reason.
The sun appears on the western horizon for some time after sunset.
The refractive index of a transparent medium is always greater than ______.
Assertion and reasoning type
- Assertion: If the refractive index of the medium is high (denser medium) the velocity of the light in that medium will be small
- Reason: Refractive index of the medium is inversely proportional to the velocity of the light
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 ______.
A ray of light traveling in medium 1 strikes and travels into another transparent medium 2. If the speed of light is greater in medium 1, the ray will ______.
In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.
