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प्रश्न
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
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उत्तर
Focal length is the distance between pole (P) and focus (F)
(F) Focus is a point on principal axis where rays of light appear to meet.
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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
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?
Name the two types of spherical mirrors. What type of mirror is represented by the:
back side of a shining steel spoon?
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(A) Should move the mirror away from the screen.
(B) Should move the mirror towards the screen.
(C) Should move the mirror and screen both towards the sun.
(D) Should move only the screen towards the sun.
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Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
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Define the following term in relation to concave mirror.
Pole
Define the term Principle focus.
