Refraction through flat glass. Light travelling in air strikes a flat piece of uniformly thick glass at an incident angle of 60.0°, as shown. If the index of refraction of the glass is 1.50, (a) what is the angle of refraction 0, in the glass; (b) what is the angle Og at which the ray emerges from the glass? Air Glass Air 60.0

5. A narrow beam of composite red and violet light initially in air is incident upon a rectangular block. The indices of refraction regarding the block are; n=1.50 for the red light n=1.54 for the violet light. a. If the incident beam strikes the surface of the block at an angle of a = 65.0°, what it the angular separation of the red and violet light as it exits the block, going back into air? b. Between what two angles of incidence a will only one of the colors of light emerge through the top of the block? State which color makes it through (Red or Violet).

A light ray strikes a 10-cm-thick glass pane, making a 30° angle to the perpendicular to the glass as it enters.  When the ray reemerges into air on the other side of the pane, how much has it been displaced from where it would have been if the glass weren't there (this is the distance d indicated in the figure below)? A 1.25 cm B 2.23 cm C 1.94 cm D 2.46 cm

1. A flashlight held 1.3 m above the surface of a water tank shines a beam of light on the water (index of refraction n 1.33). The light hits the water 2.7 m away from the edge of the tank, where the flashlight is held. The water tank is 2.1 m deep. (a) What is the incident angle relative to the normal? (b) What is the transmitted angle relative to the normal? (c) Where does the light ray hit the bottom of the water tank, mea- sured from the edge of the tank where the flashlight is held? light ray 2.7 m d=? = water tank 1.3 m 2.1 m