Required Practical: Waves In Solid

Question 1

Equipment needed

Answer 1

String on a clamp attacked to a vibration generator connected to signal generator to change frequency of vibration
Other end is hanging mass to keep it taut

Question 2

Standing wave

Answer 2

The point where they make 2 loops

Question 3

Step 1

Answer 3

Measure length of standing wave using ruler
From wooden bridge to vibrating generator

Question 4

Step 3

Answer 4

Calculate wave speed
Frequency = from the signal generator
Wavelength = what we measure
Multiply these together = wave speed

Question 5

Step 4

Answer 5

Increase wavelength so standing wave changes
To 3 half wavelengths

Question 6

Step 5

Answer 6

Calculate wave speed
Wavelength = what we measured dividing by number of half wavelengths and x 2
Frequency = from generator
Multiply together

Question 7

Conclusion

Answer 7

Wave speed of string doesn’t depend upon frequency or wavelength
But the taughtness of the string

Question 8

Calculating wavelength of standing wave

Answer 8

Divide number by total number of half wavelengths
Multiply by 2