Exam 23: Reflection and Refraction of Light

A ray of light enters an equilateral prism made of material with n = 1.45.What angle of incidence, $\theta$ ,will cause the internally refracted ray to be parallel to the base of the prism?

A convex mirror has a radius of 10 cm.What is its focal length?

When looking at your own reflection in a plane mirror,you notice that you can't see all of your body.So,in order to see a larger fraction of your body

A 6.0 cm tall object is placed 20 cm in front of a convex mirror with focal -100 cm focal length.Which of the following describes the image?

A 9.0 cm object is placed in from of a mirror and the image formed is upright,behind the mirror,and 3.0 cm in size.Which of the following statements is true and the most inclusive?

An innovative physics professor conducts laboratory exercises in the college swimming pool.Suppose that one exercise was the measurement of the degree of polarization by bouncing laser light off a surface of glass.If the glass used has an index of refraction of 1.52,at what angle of incidence will the reflected beam be perfectly polarized? It will help to recall that the index of refraction of water is 1.33.

Which of these statements is true for the image formed by an object placed in front of a thin lens?

In a camera,the image focused on the film is

A 25 cm focal length mirror has a 3.0 cm tall object placed 20 cm in front of it.What is the size of the image and is it upright or inverted?

A small object is enclosed in plastic (n = 1.5). The object appears to be 4.0 cm below the surface.What is the actual distance of the object below the surface?

The critical angle for Lucite is 41.8 $^{\circ}$ .What is Brewster's angle for Lucite?

A light ray in material 1 goes into material 2.The angle of incidence in material 1 is 40.0 $^{\circ}$ and the angle of refraction in material 2 is 31.0 $^{\circ}$ .If the index of refraction of material 1 is 1.60,what is the index of refraction of material 2?

A concave mirror has an object placed 40 cm in front of it.An image forms 60 cm in front of the mirror.What is the focal length of the mirror?

A diver,below the surface of a lake,notices that no light appears to be coming toward her greater than the angle $\theta$ ,measured from the vertical.If the index of refraction of water is 1.33,what is the angle $\theta$ ?

When total internal reflection happens at a plastic-air interface

A 6.0 cm tall object is placed 20 cm in front of a convex mirror with focal -100 cm focal length.What is the size of the image formed?

In order to produce an image double the size of an object with a converging lens of focal length f,what object distance should be used?

When you see your image in a plane mirror,your image appears to be

A building 30 m tall is being photographed with a camera with a lens of focal length 50 mm.How tall is the image on the film if the building is 100 m away?

You are experimentally determining the critical angle for a novel transparent solid whose index of refraction is less than that of water (n=1.33) but greater than that of air (n=1.00).Your experimental method involves work underwater in which you observe whether there is any transmitted ray at the water/solid interface as you vary the angle of incidence on the solid surface.When your device reaches an incident angle of 53 degrees you find that the transmitted ray vanishes.What is the index of refraction for this new solid?