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प्रश्न
A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
पर्याय
MW
MS
SW
MW-WS
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उत्तर
MS
Explanation:
The focal length of a concave mirror is the distance between its pole and principal focus.
That is, the distance of the image formed (screen) from the concave mirror will be equal to the focal length of the concave mirror.
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संबंधित प्रश्न
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angle of reflection?
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Define the following term in relation to concave mirror.
Principal focus
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
