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Optics — Science STD 10 — Question

Tamilnadu BoardEnglish MediumSTD 10ScienceOptics1 Mark
MCQ
The law of distances is given by:
  • A
    $\frac{1}{f}=\frac{1}{u}-\frac{1}{v}$
  • ✓
    $\frac{1}{f}=\frac{1}{u}+\frac{1}{v}$
  • C
    $\frac{1}{f}=\frac{1}{u}$
  • D
    $\frac{1}{f}=\frac{1}{v}$
✓

Answer

Correct option: B.
$\frac{1}{f}=\frac{1}{u}+\frac{1}{v}$

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