12th Physics Practical No.6. ~ Resonance Tube

12th physics practical book answers pdf Maharashtra board

~ Resonance Tube

Questions:

Q.1 What is meant by the term resonance? 

When the frequency of an external applied periodic force of an a body is equal to the natural frequency of the body, the body begins to vibrate with an increased amplitude. This phenomenon is known as resonance.

Q.2 What are forced oscillations?

The oscillations in which a body oscillates under the influence of an external periodic force.

Q3. What are the sources of error in this experiment?

The sources of errors in resonance tube experiment are:

1.Background noise

2.Temperature fluctuation can lead to error of  occurrence.

3.  distance between tuning fork and resonance tube

4. distance between human ear and resonance tube

Q4. What are nodes and antinodes?

  Node:  the point at which wave has minimum amplitude

 Antinode:  the point at which wave has a maximum amplitude.

Q5. What is end correction? how to eliminate it?

 End correction is a short distance applied or added to actual length of resonance pipe

in order to calculate the precise resonance frequency of the pipe.

Q6. State the factors on which velocity of sound depends?

 factors on which velocity of sound depends on are:

1. properties of medium through which sound Travels.

2. density increases velocity of sound increases

3. temperature of medium increases velocity of sound increases

4. increase in humidity of air increases velocity of sound in air

Q7. How does the speed of sound in the given medium vary with the temperature?

 molecules at Higher temperature have more energy does they can vibrate faster since

the molecule vibrate faster, sound wave can travel more quickly

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