On an optical bench of 150 cm, a student used a concave mirror of focal length 20 cm to observe object distance (u) and image distance (v) respectively as:
(A) (40 cm, 10 cm) (B) (60 cm, 15 cm) (C) (80 cm, 38 cm) (D) (60 cm, 30 cm) (E) (40 cm, 40 cm)
Choose the correct answer from the options given below: |