1
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
Two beams, $$A$$ and $$B$$, of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam $$A$$ has maximum intensity (and beam $$B$$ has zero intensity), a rotation of polaroid through $${30^ \circ }$$ makes the two beams appear equally bright. If the initial intensities of the two beams are $${{\rm I}_A}$$ and $${{\rm I}_B}$$ respectively, then $${{{{\rm I}_A}} \over {{{\rm I}_B}}}$$ equals:
2
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
A beam of unpolarised light of intensity $${{\rm I}_0}$$ is passed through a polaroid $$A$$ and then through another polaroid $$B$$ which is oriented so that its principal plane makes an angle of $${45^ \circ }$$ relative to that of $$A$$. The intensity of the emergent light is
3
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Two coherent point sources $${S_1}$$ and $${S_2}$$ are separated by a small distance $$'d'$$ as shown. The fringes obtained on the screen will be
![JEE Main 2013 (Offline) Physics - Wave Optics Question 116 English](https://imagex.cdn.examgoal.net/0F6HoUo0Kx5d5iwR1/P3Oct89V3WIj1lOil79CHvfvzIIP7/I8nT43Stpb0WyQmzx7btu6/image.png)
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
In Young's double slit experiment , one of the slit is wider than other, so that amplitude of the light from one slit is double of that from other slit. If $${{\rm I}_m}$$ be the maximum intensity, the resultant intensity $${\rm I}$$ when they interfere at phase difference $$\phi $$ is given by :
Questions Asked from Wave Optics (MCQ (Single Correct Answer))
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