A) \[+60\text{ }D\]
B) \[-60\text{ }D\]
C) \[-1.66\text{ }D\]
D) \[\frac{1}{1.66}\text{ }D\]
Correct Answer: C
Solution :
\[f=-d=-60 cm\] \[\therefore \,\,\,\,\,\,P=\frac{100}{f}=-\frac{100}{60}=-\frac{10}{6}=-1.66\,D\]You need to login to perform this action.
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