Physics-Reflection
NEET Physics Reflection MCQ Question
Type: MCQ-numerical-Medium-Class 12
A concave mirror has a radius of curvature R. If an object is placed at a distance u from the mirror, what is the expression for the image distance v using the mirror equation?
A
v = uR / (2u - R)
B
v = 2uR / (R - 2u)
C
v = uR / (R + 2u)
D
v = 2uR / (R + u)
Correct Answer
Option A
Detailed Explanation
Using the mirror equation 1/f = 1/v + 1/u and f = R/2, we get 1/v = 2/R - 1/u. Solving for v gives v = uR / (2u - R).
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