Equations

Question 1

What is the equation for phase difference?

Answer 1

2[radian]
—————— x Path difference
wavelength

[Can be re-arranged to get path difference as subject]

Question 2

What is an alternative equation for power?

Answer 2

Power= n h f

where n = no. photons
where h is planck’s constant
and f is frequency

Question 3

What is the equation for specific charge?

Answer 3

Charge / Mass

= ?Ckg^-1

Question 4

What equation can be used to find a harmonic?

Answer 4

fn = nfo

Fn = nth harmonic
N = the harmonic you have
O= fundamental frequency

Question 5

What is the equation to find the separation of fringes?

Answer 5

w= λD/s

w= Separation of fringes (m)
λ= wavelength of light source (m)
D= distance between double slit and screen
s= distance between the slits

Question 6

How to find the distance between the slits of a diffraction grating?

Answer 6

1/ no. of slits

Question 7

One Amp equals how many Coulombs?

Answer 7

1A=1C