Question

While sitting in a boat, a fisherman observes that 2 complete waves pass by his position every 4 seconds. What is the period of these waves?A)2s B)8s C) 0.5 s D) 4s​

Answer 1

Answer:

2

Explanation:

Because 2 waves 4 secs means 1 in 2s

Answer 2

The period of these waves is 2s. and The right option is A)2s.

The period of a wave is the time taken by a wave to complete one cycle.

The formula of period from the question is given below.

⇒ Formula:

• T = t/2.................... Equation 1

⇒ Where:

• T  = Period of the wave
• t = time taken for two complete oscillation

From the question,

⇒ Given:

• t = 4 seconds.

⇒ Substitute these value above into equation 1

• T = 4/2
• T = 2 seconds.

Hence, The period of these waves is 2s.

The right option is A)2s

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