How to find the angle of incidence. - A person stands .038 cm in front of a wall that is covered floor to ceiling with a plane mirror. His eyes are .019 cm above the floor. He holds a flashlight between hi feet and manages to point it at the mirror. At what angle of incidence must the light strike the mirror so the light reaches his eyes?
Refraction problem - Light is reflected from a glass coffee table. When the angle of incidence is 56.0°, the reflected light is completely polarized parallel to the surface of the glass. What is the index of refraction of the glass?
Diffraction-Rayleigh criterion - Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes (average refractive index = 1.36) have diameters of about 7.0 mm. The taillights of this car are separated by a distance of 1.4 m and emit red light (wavelength = 660 nm in vacuum). How far away from you is this car when its taillights appea...
answer in meters/ seconds - At a certain location, the horizontal component of the earth's magnetic field is 4.6E-5 T, due north. A proton moves eastward with just the right speed, so the magnetic force on it balances the weight. Find the speed of the proton.
Polarization - Completely polarized light is passed through a polarizing sheet.
The light that passes though has an intensity of 50% of the incident beam. The angle between the direction of the polarization of the incident beam and the direction of the polarization of the sheet must be what?