Exam 13: The Nature of Light and the Principles of Ray Optics

A laser beam is incident from the air at an angle of 30.00 $\degree$ to the vertical onto a solution of Karo syrup in water.If the beam is refracted to 19.24 $\degree$ to the vertical, what is the index of refraction of the syrup solution?

Light is refracted through a diamond.If the angle of incidence is 30 $\degree$ , and the angle of refraction is 12 $\degree$ 0, what is the index of refraction?

When a light ray travels between any two points, the path it takes is the one that (Hint: Eliminate answers you know are wrong.):

A light ray whose frequency is 6.00 * 1014 Hz in vacuum is incident on water (n = 1.33).The wavelength of the light after it enters the water is (in nm):

The first successful measurement of the speed of light was made by:

According to Einstein's theory, the energy of a photon is:

A light ray strikes a hexagonal ice crystal floating in the air perpendicular to one face, as shown below.The hexagonal faces of the crystal are perpendicular to the plane of the page.All the rays shown are in the plane of the page, and nice = 1.30.Which outgoing ray is correct when the incoming ray strikes the crystal face on the left head on?

Light strikes a diamond (n = 2.42) at an angle of 60 $\degree$ relative to the normal to the surface.What is the angle of refraction?

Light can exhibit the characteristics of:

A layer of water (n = 1.333) floats on carbon tetrachloride (n = 1.461) contained in an aquarium.To the nearest degree, what is the critical angle at the interface between the two liquids?

When light is either reflected or refracted, the quantity that does not change in either process is its:

A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 $\degree$ relative to the normal.If the index of refraction of water and glass are 1.33 and 1.5, respectively, at what angle (in degrees) does the light leave the glass (relative to its normal)?

A layer of kerosene (n = 1.45) is floating on water (n = 1.33).For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?

A person in a boat sees a fish in the water (n = 1.33), the light rays making an angle of 40 $\degree$ relative to the water's surface.What is the true angle (in degrees) relative to the water's surface of the same rays when beneath the surface?

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat non-reflecting surface.The edges of the two mirrors meet at a 30 $\degree$ angle.A light ray that approaches mirror 1 is parallel to mirror 2.The angle of reflection of that ray from mirror 1 is:

A person looks horizontally at the edge of a swimming pool.If its length is 5 m, and the pool is filled to the surface, to what depth (in m) could the observer see? (n for water is 1.33)

The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46).The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol, v2/v1, is:

An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461).If the angle of incidence into the water from the carbon tetrachloride is 20 $\degree$ , what is the angle of refraction into the air?

Light strikes a diamond (n = 2.42) immersed in glycerin (n = 1.473) at an angle of 60 $\degree$ relative to the normal to the surface.What is the angle of refraction?

An experiment to measure the speed of light uses an apparatus similar to Fizeau's.The distance between the light source and the mirror is 10 m, and the wheel has 800 notches.If the wheel rotates at 9000 rev/s when the light from the source is extinguished, what is the experimental value for c (in m/s)?