Waves and refraction 3
1 Waves made with a straight roller are shown crossing a ripple tank.
Draw rays starting with the three arrows shown.
2 Waves are shown crossing from deep to shallow water in a ripple tank.
a How do you know the two regions are of uiform depth?
b Which region has the shallow water?
c Draw the ray diagram.
d Mark and measure the angles of incidence and refraction. Record errors.
e Calculate the refractive index (n = sin i / sin r) with an error.
3 Waves are shown approaching three mirrors. Draw each wave after it has reflected from the mirror.