Advertisements
Advertisements
प्रश्न
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
Advertisements
उत्तर
The spherical mirror which has
(a) a virtual principal focus is a convex mirror
(b) a real principal focus is a concave mirror
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal axis
Explain the following term related to spherical lenses: focal length
We can obtain a real, enlarged and inverted image by a concave mirror.
A concave mirror always forms a real image.
Give one use each of a concave and a convex mirror.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What name is given to the distance between spherical mirror and carbon paper?
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
Draw a ray diagram to show the formation of image by a concave mirror for an object placed between its pole and focus. State three characteristics of the 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.
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
Define the following term in relation to concave mirror.
Principal axis
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
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?
