A tuning fork vibrating in water with a frequency of 840 Hz produces waves that are 2.5 m long. If a tuning fork vibrating at 500 Hz produce

Question

A tuning fork vibrating in water with a frequency of 840 Hz produces waves that are 2.5 m long. If a tuning fork vibrating at 500 Hz produces the same type of wave in water, what will the wavelength of the waves be?
A) 1.5 m
B) 4.2 m
C) 3.2 m
D) 2.5 m

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RuslanHeatt 4 years 2021-09-02T02:20:50+00:00 1 Answers 9 views 0

Answers ( )

  1. minhkhoi
    0
    2021-09-02T02:22:06+00:00
    Reply

    Answer:

    Option B

    Explanation:

    As we know

    Frequency (F) * wavelength (W) = C (speed of light – can also be taken as constant)

    Hence,

    F1 W1 = C\\F2W2 = C

    Or F1W1 = F2W2

    Substituting the given values, we get –

    840 *2.5 = 500 *XX = 4.2 m

    Hence, option B is correct

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