Advertisements
Advertisements
Question
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
Solution
An image is formed due to the reflection of light by a plane mirror. In a completely dark room, there is no light present in the room. Thus, no reflection of light takes place by the mirror placed in the room. Hence, no image will get formed by a mirror in a completely dark room.
APPEARS IN
RELATED QUESTIONS
How is a plane mirror made ?
You are standing at a distance of 2 meters from a plane mirror.
What is the distance of your image from the mirror?
How will you explain the statement 'we cannot see the objects in a dark room'?
If the angle between the plane mirror and the incident ray is 40∘, what are the angles of incidence and reflection?
An object 3 cm high produces a real image 4.5 cm high when placed at a distance of 20 cm from a concave mirror. Calculate:
- the position of image
- focal length of the concave mirror.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
Give two uses of convex mirror.
Total internal reflection will occur if the angle of reflection is ______.
Play with a mirror
Write your name with a sketch pen on a thin sheet of paper, polythene or glass. Read your name on the sheet while standing in front of a plane mirror. Now look at your image in the mirror.
