Velocity of a Pulse Propagated Through a Slinky
1)In longitudinal mode of wave propagation, how do the particles of the medium vibrate?
  

2)In what material can transverse waves propagate?
  

3)The wavelength of transverse wave is equal to:
  

4)Which of the following is true of wave velocity?
  

5)During a wave motion in a string, what does every particle do?
  

6)What do we need to find the velocity of the pulse in a string?
  

7)A strong transverse horizontal pulse, created at one end of a string, is observed to complete five journeys along its length, before fading out. The initial and final readings, on a stop-clock used in the experiment, are as shown here. If the length of the string is L metre, the speed of the pulse, through the string, is:
  

8)What kind of waves can be produced on a slinky?
  

9)Which of the following is true about the velocity of a pulse in a string?
  

10)What happens when a pulse is formed on a slinky?
  

11)A student fixes two ends of a rope to two rigid supports- A and B placed at a distance of 7.5 m. He then gives a transverse horizontal jerk to create a pulse in the rope which moves from A to B, B to A, again from A to B and B to A.... and so on. The moment he gives jerk to the rope his friend immediately starts the stop watch. The pulse dies after completing three journeys from A to B and back. The pulse takes 1 min. and 15 seconds to complete its entire journey. What is the speed of the pulse moving on the rope?
  

12)When a pulse produced in a slinky moves through it and strikes a rigid pole or a wall as shown in the diagram, it is reflected back and the shape of the reflected pulse resembles the shape given in:
  

 
 
 
 

13)How should the point of creation of the pulse at one end of the string be kept with respect to the fixed point?
  

14)The pulse created by compressing the turns of the spring is:
  

15)The pulse created and observed to move can be reflected_____.
  

16)What happens when the pulse reaches the fixed end of the string?
  

17)Where is a pulse formed?
  

18)The string used should not be _________.
  

19)How can you produce a waves pulse on a rope when one end is fixed?
  

20)How do you produce a transverse wave along a slinky?
  

21)Four students did their experiments on measuring the speed of a pulse through a string as follows: Student A stretched his thick cotton string very taut and gave it a very mild transverse horizontal jerk. Student B stretched his thin jute string just taut and gave it a mild transverse horizontal jerk. Student C stretched his thick cotton string just taut and gave it a strong transverse horizontal jerk. Student D stretched his thin jute string very taut and gave it a strong transverse horizontal jerk. Which student used the string correctly in the experiment?
  

22)While doing the experiment on measuring the velocity of a pulse through a stretched string, a student had to choose between using (i) a thick silk string and a thick cotton string. (ii) a stop clock and a table clock. Which combination of choices is best for the experiment?
  

23)How would you describe a slinky?
  

24)How can we sense compression in a spring?
  

25)When are compression and rarefaction seen?
  

26)What is the formula for velocity of a pulse along a slinky?
  

27)Shyam was calculating the velocity of wave using a slinky. He asked his teacher about the features of spring to be used. Which of the following describes the features that the spring should have?
  


  


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