PDF chapter test TRY NOW

1. Light ray emerges from water into air. Draw a ray diagram indicating the change in its path in water.
 
a. When a ray of light passes from water into air, light .
 
b. Angle of incidence is  angle of refraction.
  
2. When a ray of light passes from air into glass, is the angle of refraction greater than or less than the angle of incidence?
  
a. When a ray of light passes from air into glass, light .
 
b. Angle of incidence is  angle of refraction.
 
3. What do you conclude about the speed of light in diamond. if the refractive index of diamond is 2.41?
  
a. The formula to find refractive index is
 
 
b. The speed of light ,  when it travels from air to diamond.