Practicals

Question 1

Explain the graph for stationary waves on a string

Answer 1

X is Length
Y is 1/f
2/gradient is wave speed c

Question 2

Graph for double slits and diffraction

Answer 2

X is w
Y is D
Gradient is wavelength/s

Question 3

Graph for calculating g from freefall

Answer 3

X is t
Y is 2h/t (intercept is 2u)
Gradient is g

Question 4

Young modulus graph

Answer 4

X is mg
Y is delta L
YM is L/(A x gradient)

Question 5

Resistivity graph

Answer 5

X is L
Y is R
Resistivity is A x gradient

Question 6

EMF and internal resistance graph

Answer 6

X is I
Y is V
Gradient is r, intercept is EMF

Question 7

Graph for SHM, pendulum

Answer 7

X is L

Y is T squared