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प्रश्न
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
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उत्तर
(a) A dentist uses CONCAVE MIRROR.
(b) Convex mirror
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संबंधित प्रश्न
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
What type of mirror can be used to obtain a real image of an object?
A point light source is kept in front of a convex mirror at a distance of 40 cm. The focal length of the mirror is 40 cm. Find the position of image.
Select the correct option:
A mirror forms a virtual image (diminished) of an object, whatever be the position of object:
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
A converging lens of focal length f is placed at a distance 0.3 m from an object to produce an image on a screen 0.9 m from the lens. With the object and the screen in the same positions, an image of the object could also be produced on the screen by placing a converging lens of focal length.
