Question:
The focal length \( f \) is related to the radius of curvature \( r \) of the spherical convex mirror by:
The focal length \( f \) is related to the radius of curvature \( r \) of the spherical convex mirror by:
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The focal length of a spherical convex mirror is half the radius of curvature: \( f = \frac{r}{2} \).
Updated On: Apr 2, 2025
- \( f = + \frac{r}{2} \)
- \( f = -r \)
- \( f = -\frac{r}{2} \)
- \( f = r \)
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The Correct Option is A
Solution and Explanation
Step 1: For a spherical mirror, the relationship between the focal length \( f \) and the radius of curvature \( r \) is given by the mirror equation:
\[
f = \frac{r}{2}.
\]
Step 2: For a convex mirror, the focal length is positive, and the focal point lies behind the mirror.
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