Question:
The difference between two audible frequencies is about 4 Hz. If one frequency and the speed of sound is 340 m/s, the other frequency might be about
The difference between two audible frequencies is about 4 Hz. If one frequency and the speed of sound is 340 m/s, the other frequency might be about
Show Hint
To solve Doppler Effect problems, remember that the observed frequency changes based on relative motion, and you can add or subtract the frequency difference accordingly.
Updated On: Apr 1, 2025
- 300 Hz
- 325 Hz
- 350 Hz
- 375 Hz
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
We can use the Doppler Effect formula to estimate the frequencies. If we know the difference in frequencies and the speed of sound, we can find the other frequency. Given that the difference is 4 Hz and the speed of sound is 340 m/s, solving for the other frequency gives:
\[
f_2 = f_1 + \Delta f
\]
where \( f_1 = 340 \, {Hz} \) and \( \Delta f = 4 \, {Hz} \). Thus, the second frequency is:
\[
f_2 = 340 + 4 = 375 \, {Hz}
\]
Hence, the correct answer is (d).
Was this answer helpful?
0
0
Top Questions on Waves
- What is the wavelength of a sound wave with a frequency of \( 500 \, \text{Hz} \) in air? (Take the speed of sound in air as \( 340 \, \text{m/s} \))
- The equation of a wave travelling on a string is $ y = \sin[20\pi x + 10\pi t] $, where x and t are distance and time in SI units. The minimum distance between two points having the same oscillating speed is :
- Displacement of a wave is expressed as $$ x(t) = 5 \cos \left( 628t + \frac{\pi}{2} \right) \, \text{m}. $$ The wavelength of the wave when its velocity is 300 m/s is:
The displacement $ x $ versus time graph is shown below.
The displacement $ x $ is plotted against time $ t $. Choose the correct answer from the options given below:- Let \( \lambda_e \), \( \lambda_p \), and \( \lambda_d \) be the wavelengths associated with an electron, a proton, and a deuteron, all moving with the same speed. Then the correct relation between them is:
View More Questions
Questions Asked in IPU CET exam
- The most widely used code that represents each character as a unique 8-bit code is:
- IPU CET - 2023
- Binary Operations
- If A = 26, SUN = 27, then CAT = ?
- IPU CET - 2023
- Coding Decoding
Which of the following is an octal number equal to decimal number \((896)_{10}\)?
- IPU CET - 2023
- Binary Operations
- If A represents '1' and o represents '0'. What will be the one's complement of oAAooA?
- IPU CET - 2023
- Binary Operations
- The forces acting at a point are called as:
- IPU CET - 2023
- General Science
View More Questions