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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
Define Radius of curvature of the 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.
What is the advantage of using a carbon paper rather than a white paper?
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.
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
A concave mirror forms a virtual image of size twice that of the object placed at a distance 5 cm from it. Find:
- the focal length of the mirror
- position of image
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
