MCQ
Which of the following formula is correct for a spherical lens?
- A$\frac{1}{f}=\frac{1}{u}+\frac{1}{v}$
- ✓$\frac{1}{f}=\frac{1}{v}-\frac{1}{u}$
- C$\frac{1}{u}=\frac{1}{v}-\frac{1}{f}$
- D$f=\frac{u v}{u+v}$
✓
Answer
Correct option: B.
$\frac{1}{f}=\frac{1}{v}-\frac{1}{u}$
(B) - $\frac{1}{f}=\frac{1}{v}-\frac{1}{u}$
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