Question
A mosquito O is sitting infront of a glass rod having spherical end of radius of curvature 40 ~cm . The image would be formed at
BITSAT
Physics
Ray Optics
2022
BITSAT 2022
BITSAT Physics Question (2022) — Solution
Options
- A. 40 ~cm left
- B. infinity
- C. 20 ~cm to the right
- D. 15 ~cm to the left
Answer
A. 40 ~cm left
Step-by-step solution
As, we know, _2 v - _1 u = _2- _1 R aligned & 1.5 v - 1 (-20) = 1.5-1 +40 \\ & v=-40 ~cm \\ & aligned Negative sign shows that image is obtained on the same side of object i.e., towards left.
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