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Rays from Sun converge at a point 15 cm in front of a concave mirror. Where an object should be placed so that size of its image is equal to the size of the object?
CBSE | Class 10 | Light Reflection and Refraction | NCERT | Physics
Rays from Sun converge at a point 15 cm in front of a concave mirror. Where an object should be placed so that size of its image is equal to the size of the object?

(a) 15 cm in front of the mirror

(b) 30 cm in front of the mirror

(c) between 15 cm and 30 cm in front of the mirror

(d) more than 30 cm in front of the mirror

Answer: (d) more than 30 cm in front of the mirror

Explanation: When rays from Sun converge at a point 15 cm is in front of a concave mirror, the object should be placed more than 30 cm in front of the mirror so that the size of its image is equal to the size of the object.

i

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