Optics Answers

Suppose a layer of oil (refractive index is 1.45) floats on water (refractive index is 1.33).If a ray of light shines onto the oil with an incidence angle of 40°, what is the angle formes between the ray and the surface of the water?

a) Given;

b)Formula:

c)Solution

d)Final answer with unit:

A concave mirror has a focal length of 0.50 m.

if an object produces a virtual image 0.09 m from the mirror, where is it located?

As you are analyzing a spherical mirror situation, you write an equation that states: 1/f=1/+12cm+1/+24cm. What is the value of 1/f? What is f?

An underwater scuba diver sees the Sun at an apparent angle of 47.0° above the horizontal. What is the actual elevation angle of the Sun above the horizontal? (Use 1.333 for the index of refraction of water.)

 ° above the horizon

Assume a transparent rod of diameter d = 6.06 𝜇m has an index of refraction of 1.25. Determine the maximum angle 𝜃 for which the light rays incident on the end of the rod in the figure below are subject to total internal reflection along the walls of the rod. Your answer defines the size of the cone of acceptance for the rod.

Suppose a layer of oil (refractive index is 1.45) floats on water (refractive index is 1.33).If a ray of light shines onto the oil with an incidence angle of 40°, what is the angle formes between the ray and the surface of the water?

a) Given;

b)Formula:

c)Solution

d)Final answer with unit:

A ray of light passing from water to air is deviated 10° from its original direction.What is the a) angle of incidence b) angle of reflection and

c) angle of refraction?

A ray of light passing grom water to air is deviated 10° from its original direction.what is the a) angle o incidence b) angle of reflection c) angle of refraction?

Two smooth reflecting surfaces (A and B ) ate perpendicular to each other.Light strikes surface A at a point 12cm from the point of intersection of surfaces A and B.If the angle of incidence is 30 degrees, how far from the point of intersection of the two surfaces will yhe reflected light from surface A steike surface B?

With the help of appropriate energy level diagram, explain the working of a He-Ne laser. A He-Ne laser emits a beam of diameter 2103m and wavelength 630 nm. It is directed towards an aeroplane flying at a height of 11 km. Calculate the diameter of the light patch produced on the surface of the aeroplan