First Harmonic and standing waves continued Flashcards
1
Q
What is the equation for the first harmonic
A
f = 1/2l (Squareroot T/mew)
2
Q
What is l
A
length of string (m)
3
Q
What is T
A
tension in string (N)
4
Q
What is mew
A
mass per unit length (kgm^-1)
5
Q
What is the rule of thumb if tension increases
A
frequency increases
6
Q
How do we use standing waves to calculate wavelength of microwaves
A
Use transmitter and metal plate to relfect and create a standing wave
move receiver to locate adjacent nodes
wavelength = 2 x distance from plate to probe
