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प्रश्न
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उत्तर
(i) The distance from the pole in the direction of incident ray is taken positive.
(ii) The distance from the pole in the direction opposite to the incident ray is taken negative.
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संबंधित प्रश्न
Write the mirror formula. Give the meaning of each symbol which occurs in it.
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
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.
Which mirror will you prefer to use as a rear view mirror in a car : plane mirror or convex mirror? Give one reason.
An object of length 4 cm is placed in front of a concave mirror at distance 30 cm. The focal length of mirror is 15 cm.
- Where will the image form?
- What will be the length of image?
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?
