What could be sources of error in an experiment?
Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig.
What are the sources of error in resonance experiment?
Answer: Factors which could have altered the waveforms include background noise, drift stemming from temperature, and the distance between the tuning fork and the microphone and the distance between the person humming and the microphone…..
What causes standing waves on a string?
Standing waves are produced on a string when equal waves travel in opposite directions. When the proper conditions are met, the interference between the traveling waves causes the string to move up and down in segments, as illustrated below.
What is the purpose of the standing wave lab?
This laboratory experiment is designed to study the parameters that affect standing (stationary) waves in various strings. The effects of string tension and density on wavelength and frequency will be studied.
What are nodes and antinodes in resonance tube experiment?
Stationary waves Due to the constructive interference, these waves produce certain fixed points along the medium which undergo zero displacement. These points of no displacement are known as nodes. Midway between every nodes are regions of maximum displacement. These points are called antinodes.
How stationary waves are formed in a stretched string?
A stretched string is fixed at both ends, when it is plucked at mid point, two reflected waves of same amplitude and frequency at the ends are travelling in opposite direction and overlap along the length. Then the resultant waves are known as the standing waves ( or) stationary waves.
How do you find the source of error in a lab?
One method of measuring error is by calculating absolute error, which is also called absolute uncertainty. This measure of accuracy is reported using the units of measurement. Absolute error is simply the difference between the measured value and either the true value or the average value of the data.
What are sources of error in standing wave experiment?
The error may occur in the measurement of the length of the wire. There is always uncertainty in setting the bridge in the final adjustment position as the resonance is very sharp in this experiment. Some friction may be present in the pulley and hence the tension may be less than that actually applied tension.
What are the sources of error in this experiment Class 12?
Error due to sliding of jockey on the wire.
What is string wave?
String waves are an example of transverse waves because the string moves up and down at right angles to the horizontal motion of the wave. (There also longitudinal waves, e.g. sound, where the medium and the wave move along the same direction but we will focus on the transverse case.)
How accurate is the mathematical relationship for standing wave frequency?
This experiment shows that the mathematical relationship for standing wave frequency derived above is accurate. The results of the experiment are not exact due to some limitations in the setup. Also, the relationship between the fundamental frequency and the successive harmonic frequencies is correct.
What is the difference between standing waves and anti waves?
Standing waves are static across the length of the string and only oscillate perpendicular to the string. Nodes, points where the string does not move, are formed at even intervals. Anti-nodes, the points at which the string oscillations have the largest amplitude, occur exactly in between each of the nodes.
What are the sources of error in a sine wave generator?
The fourth source of error is the stability of table. The stability of the table may affect the driving frequency of the Sine Wave Generator since the vibration may lose to the desk if the position of the string vibrator is changed due to the stability of table.
What are the possible sources of error in the experiment?
Sources of Error Possible errors that could’ve occurred during the experiment include human error in detecting nodes, however, based on our results; we were pretty accurate as they were usually within an Hz of the calculated value. There could also be errors in the measurement of tension in Part 2, which could’ve caused the anomalies in the graph.