A. 800m
B. 200m
C. 5m
D. 2m
E. 0.2m

Correct Answer:

Option E – 0.2m

Explanation

λ=v/f=400/2000=0.2m

SEE ALSO  In the diagram above, AB represents a uniform rod of length 1.50m which is in equilibrium on a pivot at P, If AP = 40cm, calculate the mass of the rod. [g = 10ms‾²]

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