NEET Physics Mirrors MCQ Question
For a concave mirror with a focal length of -15 cm, an object is placed 45 cm from the mirror on the principal axis. What is the image distance from the mirror?
22.5 cm
-22.5 cm
30 cm
-30 cm
Correct Answer
Detailed Explanation
Using the mirror equation 1/f = 1/v + 1/u, where f = -15 cm and u = -45 cm, we can find v. Solving gives v = -22.5 cm, indicating the image is virtual and formed on the same side as the object.
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