Advertisements
Advertisements
प्रश्न
There is a mistake in each of the following ray diagrams given as figures a, b, and c. Make the necessary correction (s).
![]() |
![]() |
![]() |
| (a) | (b) | (c) |
Advertisements
उत्तर
- The angles are labelled wrongly in diagram (a). The angle of reflection is labelled as angle of incidence and vice versa.
- In diagram (b), the law of reflection is not followed as angle of reflection and angle of incidence are not equal in measure.
-
The normal drawn is not perpendicular to the surface in diagram (c).
The corrected ray diagram is as shown below.

APPEARS IN
संबंधित प्रश्न
Fill in the blank
Angle of incidence = ___________
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
In the following diagrams, measure and write the angle of incidence and draw the reflected ray in each case.

Define the following term
Angle of incidence
We can see a non-luminous object when the light
A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the following figure. The pencil of light coming out of the hole falls on a mirror.

At which point should the eye be placed, so that the hole can be seen?
Two mirrors A and B are placed at right angles to each other as shown in the following figure.

A ray of light incident on mirror A at an angle of 25° falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be
How many times is a ray of light reflected by two plane mirrors placed parallel and facing each other?
Angle of incidence is greater than the angle of reflection.
Assertion (A): A ray incident along normal to the mirror retraces its path.
Reason (R): In reflection, the angle of incidence is always equal to the angle of reflection.



