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    Lab 1-Resonance Tube

    Uploaded by

    dhan
    This document provides instructions for measuring the speed of sound using a resonance tube experiment. Students will use three tuning forks of different frequencies along with a measuring cylinder and PVC pipe. They will vibrate each tuning fork at the open end of the tube submerged in water to find the resonance length, and record the data in a table to calculate the speed of sound and its average value. They will also measure resonance at the fundamental frequency and first overtone of one tuning fork to determine wavelength. The percentage difference from the expected speed of sound at 32°C will also be calculated.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd

    Lab 1-Resonance Tube

    Uploaded by

    dhan
    312 views1 page
    This document provides instructions for measuring the speed of sound using a resonance tube experiment. Students will use three tuning forks of different frequencies along with a measuring cylinder and PVC pipe. They will vibrate each tuning fork at the open end of the tube submerged in water to find the resonance length, and record the data in a table to calculate the speed of sound and its average value. They will also measure resonance at the fundamental frequency and first overtone of one tuning fork to determine wavelength. The percentage difference from the expected speed of sound at 32°C will also be calculated.

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    resonance tube

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    This document provides instructions for measuring the speed of sound using a resonance tube experiment. Students will use three tuning forks of different frequencies along with a measuring cylinder and PVC pipe. They will vibrate each tuning fork at the open end of the tube submerged in water to find the resonance length, and record the data in a table to calculate the speed of sound and its average value. They will also measure resonance at the fundamental frequency and first overtone of one tuning fork to determine wavelength. The percentage difference from the expected speed of sound at 32°C will also be calculated.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    312 views1 page

    Lab 1-Resonance Tube

    Uploaded by

    dhan
    This document provides instructions for measuring the speed of sound using a resonance tube experiment. Students will use three tuning forks of different frequencies along with a measuring cylinder and PVC pipe. They will vibrate each tuning fork at the open end of the tube submerged in water to find the resonance length, and record the data in a table to calculate the speed of sound and its average value. They will also measure resonance at the fundamental frequency and first overtone of one tuning fork to determine wavelength. The percentage difference from the expected speed of sound at 32°C will also be calculated.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 1

    Addu High School

    Hithadhoo/ Addu

    DEPARTMENT OF SCIENCE
    PHYSICS

    Topic: Waves

    Aim: Measuring the speed of sound using resonance tube


    Equipment: 3 tuning forks (different frequencies), a measuring cylinder, PVC
    pipe (50 cm) long.

    Method
    1. Lower the tube into the water until the end of the tube is at the bottom.
    2. Now gently raise the tube while vibrating tuning fork is kept near the
    mouth of the tube.
    3. Stop the tube when a loud sound is heard.
    4. Mark the water level on the tube using a pencil.
    5. Remove the tube from the water and measure the length of the air column
    that resonates.
    6. Repeat the procedure for all the tuning forks.
    7. Enter the result into the table 1 below and complete all the blank columns.
    8. Calculate the average speed of the sound in air.
    9. Now use the long pipe and using the same procedure as mentioned at
    steps 2, 3 and 4, find the length of the resonating air column at
    fundamental frequency and first overtone. Use only one tuning fork.
    10.Continue the steps 2, 3 and 4 until a loud sound is heard again at first
    overtone. Even now use same tuning fork.
    11.
    Table 1
    Frequency, f,
    (Hz)

    Length of the
    air
    column (m)

    Wave length,
    , (m)
    =l

    Speed of
    Sound,
    v, (ms-1)

    Average Speed of Sound in air (m s-1)


    Calculate the percentage difference in the measured value of speed. Assume
    that the laboratory temperature is 32oC and the speed of sound is 350 m s-1.
    Department of science-Physics-unit 2-Practical -waves
    page 1

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