Question 32
Light and ReflectionAn object is placed 10 cm in front of a concave mirror of focal length 15 cm. What is the position and nature of the image formed?
- A.30 cm and virtual
- B.6 cm and real
- C.6 cm and virtual
- D.30 cm and real
Show the answer and explanation
Answer: A (30 cm and virtual)
Explanation
The object is inside the focal length, so the image is virtual. 1/v = 1/15 − 1/10 = −1/30, so it is 30 cm behind the mirror.