How do you determine wavelength of light from
a lower power laser with 2 parallel slits. (6)
laser y
↓
a
screen
slits
i
Using equation 2- aft" "which stands
for 2 = Slit separation ✗ fringe separation
distance between screen + slits.
measure distance between screen and slits
with a meter ruler. Fringe separation measured
with ruler between centres of fringes and
repeat readings
a lower power laser with 2 parallel slits. (6)
laser y
↓
a
screen
slits
i
Using equation 2- aft" "which stands
for 2 = Slit separation ✗ fringe separation
distance between screen + slits.
measure distance between screen and slits
with a meter ruler. Fringe separation measured
with ruler between centres of fringes and
repeat readings
