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प्रश्न
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
What will be the focal length of this mirror?
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उत्तर
संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal axis
Image formed by a convex ______ is always virtual and smaller in size.
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
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.
For what position of object, the image formed by a concave mirror is magnified and erect?
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
Define the following term in relation to concave mirror.
Aperture
Does the mirror name by your form a real image for all locations? Give a reason for your answer.
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
Which of the following has curved reflecting surface?
The spherical mirror with a reflecting surface curved inward is called
