Advertisements
Advertisements
प्रश्न
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
Advertisements
उत्तर
Convex mirror and concave mirror.
| Convex mirror | Concave mirror | |
| 1. | It is called a diverging mirror. | It is called a converging mirror. |
| 2. | The light is reflected from the outer surface. | The light is reflected from the inner surface. |
| 3. | It can form only a virtual image | It can form a real image as well as a virtual image. |
| 4. | According to sign convention, the focal length is positive. | According to sign convention, the focal length is negative. |
APPEARS IN
संबंधित प्रश्न
A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?
Define the following term in the context of spherical mirrors:- Pole
Explain the following term related to spherical lenses:- aperture
Define the Focal length of a spherical mirror
Name the two types of spherical mirrors. What type of mirror is represented by the:
front side of a shining steel spoon?
Name the spherical mirror which can produce a virtual and diminished image of an object.
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
How is a spherical mirror used to diverge a beam of light from a point? Name the type of mirror used.
Write the spherical mirror's formula and explain the meaning of each symbol used in it.
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
An object of height 2 cm is placed at a distance of 20 cm in front of a concave mirror of a focal length of 12 cm. Find the position, size, and nature of the image.
Define the following term in relation to concave mirror.
Aperture
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
A ray of light is incident towards a plane mirror at an angle of 30° with the mirror surface. What will be the angle of reflection?
