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संबंधित प्रश्न
Explain the following term related to spherical lenses:- optical centre
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 coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
What do you understand by the focus and focal length of a spherical mirror? Show them on the separate diagrams for each of a concave mirror and a convex mirror.
What type of mirror can be used to obtain a real image of an object?
A shopkeeper wanted to fix a mirror which will give a maximum view of his shop. What type of mirror should he use? Give reason.
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
The image formed in a plane mirror is always inverted.
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.
