Wave Optics Tes...

The solar glare of sunlight bouncing off water or snow can be a real problem for drivers. The reflecting sunlight is horizontally polarized, meaning that the light waves oscillate at an angle of $$90^o$$ to a normal line drawn perpendicular to the Earth. At what angle relative to this normal line should sunglasses be polarized if they are to be effective against solar glare? 

Find out correct option which describe the Red shift of distant galaxies.

Complete the following statement. When a light source is quickly approaching you, you may perceive a:

Newton postulated his corpuscular theory of light on the basis of

Light of wavelength $$600 \eta m$$ is incident normally on a slit of width $$0.2 mm$$. The angular width of central maxima in the diffraction pattern is :
(measured from minimum to minimum)

The optical instrument which is used in every cricket match is.:

The wavefront is a surface in which

Diameter of the objective of a telescope is 200 cm. What is the resolving power of a telescope? Take wavelength of light = 5000 $$\mathring{A}$$.

With the help of a telescope that has an objective of diameter $$200\ cm$$, it is proved that light of wavelengths of the order of $$6400\overset {\circ}A$$ coming from a star can be easily resolved. Then the limit of resolution is

White light reflected from a soap film(Refractive Index$$=1.5$$) has a maxima at $$600$$nm and a minima at $$450$$nm with no minimum in between. Then the thickness of the film is _____$$\times 10^{-7}$$m.