All Exams Test series for 1 year @ ₹349 only
Question

A wave has a frequency of 50 Hz and a speed of 36 m/s. What is the wavelength of this wave?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
0.72 m

Understanding Wave Properties

The relationship between the speed, frequency, and wavelength of a wave is fundamental in physics. This problem requires calculating the wavelength using the given frequency and speed.

Key Values Given

  • Frequency ($f$): 50 Hz
  • Wave Speed ($v$): 36 m/s

Calculating Wavelength

The formula connecting wave speed ($v$), frequency ($f$), and wavelength ($\lambda$) is:

$v = f \lambda$

To find the wavelength ($\lambda$), we rearrange the formula:

$\lambda = \frac{v}{f}$

Step-by-Step Calculation

  1. Substitute the given values into the rearranged formula:

    $\lambda = \frac{36 \text{ m/s}}{50 \text{ Hz}}$

  2. Perform the division:

    $\lambda = 0.72 \text{ m}$

Result

The calculated wavelength of the wave is 0.72 meters.

Was this answer helpful?

Similar Questions

  1. For communication, elephants can make noises as loud as 103 decibels but they often use low frequency sound, some of which is passed through the ground. These sounds are called:
  2. What are transverse waves?
  3. We hear others speaking to us from adjacent rooms due to ________ of sound waves.
  4. The speed of sound __________ as it passes from solid to gaseous medium.

  5. In a sound wave traveling through air, which of the following terms refers to a region where the particles are crowded together, resulting in high pressure and high density?

  6. What happens to the speed of sound as the temperature of the air increases?

  7. Which is the incorrect statement with regard to ultrasound waves?
  8. The way the brain interprets the frequency of an emitted sound is called the ______.
  9. As the frequency of a wave increases, what happens to its wavelength?
  10. What is the lowest frequency of sound that can be heard by human beings?

Important Questions from Wave

  1. Which of the following is correct?

    I. Sound is a mechanical wave

    II. Sound wave does not need any medium to propagate

  2. At a particular temperature, sound propagates in ______ at the fastest speed .

  3. The atmospheric green house effect is produced mainly by the absorption and re-emission of:

  4. Which of the following are examples of electromagnetic waves?

    a. Television waves

    b. Ultraviolet rays

    c. X-rays

    d. Sun rays

  5. When light passes from one medium into another medium, then the physical property which does not change is

Need Expert Advice?
Upcoming Exams
RRB JE
October 27, 2026
RRB ALP
November 03, 2026
Test Series
RRB NTPC img
Railways
RRB NTPC Under Graduate 2026 New Mock Test Series
1612 Tests 1 Tests Free
687 Attempts
4.3(510)
English, Hindi, Telugu +7 More
More Questions from RRB NTPC

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App