Waves - Result Question 16
16. In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.170 sec. The frequency of the wave is
[1998]
(a) $1.47 Hz$
(b) $0.36 Hz$
(c) $0.73 Hz$
(d) $2.94 Hz$
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Answer:
Correct Answer: 16. (a)
Solution:
- (a) Time taken to move from maximum to zero displacement $=\frac{T}{4}$
$\therefore$ Time period $T=4 \times 0.170$ second
$\therefore$ Frequency, $n=\frac{1}{T}=\frac{1}{4 \times 0.170}=1.47 Hz$
