Advertisements
Advertisements
प्रश्न
Numerical problem.
The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
Advertisements
उत्तर
Given:
Radius of curvature = 25 cm
To find: f =?
Solution:
f = `R/2`= `25/2`
f = 12.5 cm
APPEARS IN
संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Centre of curvature
Image formed by a convex ______ is always virtual and smaller in size.
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 is the nature of spherical 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.
Why is a hole burnt in the carbon paper?
State the position of object for which the image formed by a concave mirror is of same size.
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
