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Image Formation by Spherical Mirrors

The concave r...

Question

The concave reflecting surface of a torch got rusted. What effect would this have on the beam of light from the torch?

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Solution

If the concave reflecting surface of a torch gets rusted, the objects will not be clearly visible as it will produce a diffused beam of light with lower intensity.

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Question 17

The concave reflecting surface of a torch got rusted. What effect would this have on the beam of light from the torch?

Q. Rohan was playing with a torch. After some time the torch light got dim and eventually stopped working. Why did the torch stop working?
Assertion(A) : Potential difference between the terminals of the battery inside torch dropped to zero.
Reason(R) : The chemical inside the battery got used up.

Q. Paheli switches on a torch and aims it at a mirror. The reflected light from the mirror falls on Boojho, who is standing beside Paheli. For Boojho, what kind of objects are the torch and the mirror?

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Q. Assertion :A laser beam of

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