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प्रश्न
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
At which point of the spherical mirror the carbon paper is placed?
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उत्तर
The carbon paper was kept at the focus of the spherical mirror.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
