A) 45 cm and 9 cm
B) 50 cm and 10 cm
C) 7.2 cm and 5 cm
D) 30 cm and 6 cm
E) 5 cm and 7.2 cm
Correct Answer: D
Solution :
\[\frac{{{f}_{o}}}{{{f}_{e}}}=5\] \[{{f}_{o}}=5{{f}_{e}}\] \[{{f}_{o}}+{{f}_{e}}=36\] \[5{{f}_{e}}=6\,cm\] and \[{{f}_{e}}=30\,cm\]You need to login to perform this action.
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