Optics Question 84
Question: A glass hemisphere of radius 0.04 m and R.I. of the material 1.6 is placed centrally over a cross mark on a paper (i) with the flat face; (ii) with the curved face in contact with the paper. In each case the cross mark is viewed directly from above. The position of the images will be
[ISM Dhanbad 1994]
Options:
A) (i) 0.04 m from the flat face; (ii) 0.025 m from the flat face
B) (i) At the same position of the cross mark; (ii) 0.025 m below the flat face
C) (i) 0.025 m from the flat face; (ii) 0.04 m from the flat face
D) For both (i) and (ii) 0.025 m from the highest point of the hemisphere
Show Answer
Answer:
Correct Answer: B
Solution:
Case (i) When flat face is in contact with paper.
where
Case (ii) When curved face is in contact with paper
