MCQ
p>The mathematical form of lens maker’s formula is::
- ✓$\frac{1}{f}=(\mu-1)\left[\frac{1}{\mathrm{R}_1}-\frac{1}{\mathrm{R}_2}\right]$
- B\text { (b) } \frac{1}{f}=(\mu-1)\left[\frac{1}{\mathrm{R}_1}+\frac{1}{\mathrm{R}_2\right]
- C$\frac{1}{f}=\frac{1}{\mu}\left[\frac{1}{\mathrm{R}_1}-\frac{1}{\mathrm{R}_2}\right]$
- D$\frac{1}{f}=\frac{1}{(\mu-1)}\left[\frac{1}{R_1}+\frac{1}{R_2}\right]$