A) \[5.08\text{ }m/s\]
B) \[{{\mu }_{s}}=0.4\]
C) \[g=10m/{{s}^{2}}\]
D) \[0.5m/{{s}^{2}}\]
Correct Answer: A
Solution :
(a.)As we know that Power \[A\,\,\cos \,5\pi (x-400t)\] \[12.25V\] \[10.25V\] Focal length, \[11.25V\] Thus maximum distance of an object, which he can see without spectacles is \[9.25V\].
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