Advertisements
Advertisements
प्रश्न
The image in a plane mirror is virtual and laterally inverted. What does this statement mean?
Advertisements
उत्तर
This statement implies that the image formed by a plane mirror cannot be produced on a screen. Thus, it is a virtual image. Further, in the image formed, the right side of an object appears as the left side and vice-versa. This is called lateral inversion.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true of false:
A student says that we can see an object because light from our eyes is reflected back by the object.
What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
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?
What is meant by 'reflection of light'?
Name the phenomenon due to which a swimming pool appears less deep than it really is.
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
Fill in the following blank with suitable word:
Light travelling along a normal is ...............refracted.
With the help of a labelled diagram, explain why a tank full of water appears less deep than it actually is.
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of refraction?
Water is optically .......... than air.
A ray of light A incident from air suffers partial reflection and refraction at the boundary of water.

- Complete the diagram showing (i) the reflected ray B and (ii) the refracted ray C.
- How are the angles of incidence i and refraction r related?
The speed of light varies in different media.
Write scientific reason.
The bottom of a pond appears raised.
State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
The deviation of light ray from its path when it travels from one transparent medium to another transparent medium is called ______.

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?
Which surface will not reflect most of the light falling on them?
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 ______.
The bottom of swimming pool appears to be less deep than the actual one because of
