1
AIEEE 2007
+4
-1
In a Young's double slit experiment the intensity at a point where the path difference is $${\lambda \over 6}$$ ( $$\lambda$$ being the wavelength of light used ) is $$I$$. If $${I_0}$$ denotes the maximum intensity, $${I \over {{I_0}}}$$ is equal to
A
$${3 \over 4}$$
B
$${1 \over {\sqrt 2 }}$$
C
$${{\sqrt 3 } \over 2}$$
D
$${1 \over 2}$$
2
AIEEE 2005
+4
-1
Two point white dots are $$1$$ $$mm$$ apart on a black paper. They are viewed by eye of pupil diameter $$3$$ $$mm.$$ Approximately, what is the maximum distance at which these dots can be resolved by the eye? [ Take wavelength of light $$=500$$ $$nm$$ ]
A
$$1m$$
B
$$5m$$
C
$$3m$$
D
$$6m$$
3
AIEEE 2005
+4
-1
A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is
A
circle
B
hyperbola
C
parabola
D
straight line
4
AIEEE 2005
+4
-1
If $${I_0}$$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled?
A
$$4{I_0}$$
B
$$2{I_0}$$
C
$${{{I_0}} \over 2}$$
D
$${I_0}$$
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