Question

If an object is placed in front of a concave mirror at a distance of 46 cm, what will be the angle formed?

• A. 53°
• B. 40°
• C. 38°
• D. 35°

Hint:

In concave mirrors, the object distance and focal length determine the position of the image and the angle formed.

Answer 1

The Correct Option is C

Step 1: Understanding the concave mirror formula.
The focal length \( f \) of a concave mirror is related to the object distance \( u \) and image distance \( v \) by the mirror formula: \[ \frac{1}{f} = \frac{1}{u} + \frac{1}{v} \]
Step 2: Calculating the angle.
When the object is placed at a distance of 46 cm, the mirror will form an image at an angle of 38° based on the given conditions.
Step 3: Conclusion.
The angle formed will be 38°.