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प्रश्न
Geometric centre of the spherical mirror is ______.
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उत्तर
Geometric centre of the spherical mirror is pole.
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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.
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
State the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain your answer with the help of suitable ray diagrams.
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.
Which of the following has curved reflecting surface?
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
