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प्रश्न
Select the correct option:
Which mirror is used in periscope?
विकल्प
concave mirror
convex mirror
Plane mirror
parabolic mirror
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उत्तर
Plane mirror
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संबंधित प्रश्न
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
The diverging lens in part (a) is replaced by a converging lens also of focal length 100 mm. The object remains in the same position and an image is formed by the converging lens. Compare two properties of this image with those of the image formed by the diverging lens in part (a).
What do you mean by the term dispersion?
Define the following term:
spherical mirror
Define the following term in relation to concave mirror.
Focal length
Is real image always inverted?
The following figure shows a concave mirror with its pole (P), focus (F), and center of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
Define focal length.
In torches, search lights and headlights of vehicles the bulb is placed ______.
Name the type of mirror used in the following situation:
Side/rear-view mirror of a vehicle
Support your answer with reason.
