A) 1/4 cm
B) 8 cm
C) 20 cm
D) 2 cm
Correct Answer: B
Solution :
From displacement method, the length of object is given by \[O=\sqrt{{{I}_{1}}{{I}_{2}}}=\sqrt{4\times 16}=\sqrt{64}=8cm\]You need to login to perform this action.
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