A point object is moving on the principal axis of a concave mirror of focal length 24 cm…
Physics · JEE Advanced · NTA Exams — Optics
A point object is moving on the principal axis of a concave mirror of focal length 24 cm towards the mirror. When it is at a distance of 60 cm from the mirror, its velocity is
9 cm/sec. What is the velocity of the image at that instant
9 cm/sec. What is the velocity of the image at that instant
- 5 cm/sec towards the mirror
- 4 cm/sec towards the mirror
- 4 cm/sec away from the mirror
- 9 cm/sec away from the mirror
Answer
(C) 4 cm/sec away from the mirror
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