BLight travelling in glass strikes the edge of the glass. Fig. 6.1 shows a ray of light at an angle of 41° to the normal. normal; air glass 41° incidence: Fig. 6.1 4,0 (i) The light passes from the glass into the air. Calculate the angle that the ray makes with the normal in the air.
BLight travelling in glass strikes the edge of the glass. Fig. 6.1 shows a ray of light at an angle of 41° to the normal. normal; air glass 41° incidence: Fig. 6.1 4,0 (i) The light passes from the glass into the air. Calculate the angle that the ray makes with the normal in the air.