EASY
AS and A Level
IMPORTANT
Earn 100

(b) This diagram shows waves, in a ripple tank, spreading out from two slits.

Question Image

(iii) a line showing points along one of the first minima -label this line minimum.

Important Questions on Superposition of Waves

EASY
AS and A Level
IMPORTANT
The centres of the slits are 12 cm apart. At a distance of 60 cm from the barrier, the first maxima are 18 cm either side of the central maximum. Calculate the wavelength of the waves. (You may assume that the double-slit equation developed for light is applicable to ripples.)