Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Lenses1 Mark
Question
What is the power of lens?
✓
Answer
(i) The ability of lens to converge or diverge light rays depends on its focal length. (ii) The degree of convergence or divergence is expressed in terms of power of lens which is the reciprocal of focal length in metre (m). $\therefore \quad$ Power of lens $=\frac{1}{\text { focal length (metre) }}$ $\therefore \quad P=\frac{1}{f(m)}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.