teacher set up the stand carrying a convex lens of focal length 15 cm at 20.5 cm on the optical bench. She asked four students A, B, C and D to suggest the position of the screen on the optical bench so that a distinct image of a distant tree is obtained immediately on it. The positions of screen suggested by each of them were:
A - at 35.5 cm
B - at 5.5 cm
C - at 50.5 cm
D - at 7.5 cm
Correct position of the screen was suggested by
Answers
Answer:
teacher set up the stand carrying a convex lens of focal length 15 cm at 20.5 cm on the optical bench. She asked four students A, B, C and D to suggest the position of the screen on the optical bench so that a distinct image of a distant tree is obtained immediately on it. The positions of screen suggested by each of them were:
A - at 35.5 cm
B - at 5.5 cm
C - at 50.5 cm
D - at 7.5 cm
Correct position of the screen was suggested by
Explanation:
teacher set up the stand carrying a convex lens of focal length 15 cm at 20.5 cm on the optical bench. She asked four students A, B, C and D to suggest the position of the screen on the optical bench so that a distinct image of a distant tree is obtained immediately on it. The positions of screen suggested by each of them were:
A - at 35.5 cm
B - at 5.5 cm
C - at 50.5 cm
D - at 7.5 cm
Correct position of the screen was suggested by