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प्रश्न
Define the following term in relation to concave mirror.
Aperture
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उत्तर
The diameter of a spherical mirror is called its aperture.
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संबंधित प्रश्न
Write the mirror formula. Give the meaning of each symbol which occurs in it.
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting better value of focal length of the mirror, the subject teacher suggested him for focusing a well illuminated distant object. What should the student do?
(A) He should move the mirror away from the screen.
(B) He should move the mirror slightly towards the screen.
(C) He should move the mirror as well as the screen towards the newly selected object.
(D) He should move only the screen towards the newly selected object.
Select the correct option:
A concave mirror is made by cutting a portion of a hollow glass sphere of radius 30 cm. The focal length of the concave mirror is:
Define the term Aperture.
What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?
What is “aperture”?
