MCQ
Chromatic aberration of lens can be corrected by
- AReducing its aperature
- BProper polishing of its two surfaces
- ✓Suitably combining it with another lens
- DProviding different suitable curvature to its two surfaces
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$(i)$ What is $W$ along path $ibf$ ?
$(ii)$ If $W = 13$ cal for path $fi$, what is $Q$ for the path $fi$ ?
$(iii)$ Take $E_{int,i} = 10\,\, cal$ then what is $E_{int,f}$ ?