Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
An image which can be obtained on a screen is called a ______ image.
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
Discuss the position and nature of image formed by a convex mirror when an object is moved from infinity towards the pole of mirror.
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
Numerical problem.
The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
Name the two types of spherical mirrors.
What is the focal length (f) of a mirror?
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.
