A) Infinity
B) Focus
C) Pole
D) 15 cm behind the mirror
Correct Answer: D
Solution :
\[\operatorname{u} =-\,30 cm,\,\,f= + 30 cm\], by using mirror formula \[\frac{1}{f}=\frac{1}{\nu }+\frac{1}{u}\,\,\,\,\Rightarrow \,\,\,\frac{1}{+30}=\frac{1}{\nu }+\frac{1}{(-30)}\] \[\operatorname{v} =15 cm\], behind the mirrorYou need to login to perform this action.
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