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प्रश्न
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
उत्तर
The spherical mirror which has
(a) a virtual principal focus is a convex mirror
(b) a real principal focus is a concave mirror
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal focus
Explain the following term related to spherical lenses: focal length
A concave mirror always forms a real image.
How is a spherical mirror used to diverge a beam of light from 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.
Complete the following diagrams shown in Fig. by drawing the reflected ray for each of the incident ray A and B.
Write the spherical mirror's formula and explain the meaning of each symbol used in it.
The sun is seen before the sunrise and after the sunset.
