Optics Answers

 Interference fringes are produced with monochromatic light falling normally on a wedge￾shaped film of refractive index 1.4. The angle of the wedge is 10 seconds of an arc and 

the distance between the successive fringes is 0.5 cm. Calculate the wavelength of light 

used.

The fragment "[...] as in the case of light passing through darkness" refers to the propagation of light rays. Suppose a beam of monochromatic light strikes a cylindrical container of height H = 16 centimeters and radius R = 10 centimeters. With the container empty, the beam passes close to the upper edge and strikes the lower edge at a diametrically opposite point (figure below). The container is then filled completely with liquid glycerin, and the beam is deflected and strikes the center, at the bottom of the container.

Based on this information and considering the refractive index of air equal to 1, it can be stated that the refractive index n of glycerin is:

CONSIDER THE WAVE FUNCTION Y X , T = 0.015COS 8X-80T CALCULATE THE PARTICLE VELOCITY AND PARTICLE ACCELERATION AT Y 0.01 , 0.4)

light of wavelength 450 nm is incident on a diffraction grating on which 5000 lines can ruled out determine the angle corresponding to third order