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List of top Physics Questions on Wave optics asked in JKCET
In an experiment using Young?s double slit, what will be the value of fringe width
$ \beta $
, if the wavelength is doubled?
JKCET - 2019
JKCET
Physics
Wave optics
In a Young?s double slit experiment, the two slits which are separated by
$ 1.2\, mm $
are illuminated with a monochromatic light of wavelength
$ 6000 $
angstorm. The interference pattern is observed on a screen placed at a distance of
$ 1m $
from the slits. Find the number of bright fringes formed over
$ 1 \,cm $
width on the screen.
JKCET - 2017
JKCET
Physics
Wave optics
Values for Brewster's angle can be
JKCET - 2015
JKCET
Physics
Wave optics
Unpolarized light falls on two polarizing sheets placed one on top of other. If the intensity of transmitted light is one fourth of the incident light, the angle between them is
JKCET - 2013
JKCET
Physics
Wave optics
If two slits in Young's experiment are
$ 0.4\,mm $
apart and fringe width on a screen
$ 200\,cm $
away is
$ 2\,mm $
the wavelength of light illuminating the slits is
JKCET - 2013
JKCET
Physics
Wave optics
Which of the following is false for interference of light?
JKCET - 2012
JKCET
Physics
Wave optics
In a single-slit diffraction experiment, the width of the slit is reduced by half. Which of the following needs to be done if the width of the central maxima has to remain the same?
JKCET - 2012
JKCET
Physics
Wave optics
Which of the following is true for the minimum angular separation of two stars,
$\Delta \theta_{\min }$
can be resolved by a telescope? In the following aperture is the diameter of the objective
JKCET - 2012
JKCET
Physics
Wave optics
In Young's double slit experiment, the fringe width with light of wavelength
$6000 \,?$
is
$3 \,mm$
. The fringe width, when the wavelength of light is changed to
$4000 \,?$
is
JKCET - 2009
JKCET
Physics
Wave optics
The angle of incidence of light is equal to Brewster's angle, then (A) reflected ray is perpendicular to refracted ray (B) refracted ray is parallel to reflected ray (C) reflected light is polarized having its electric vector in plane of incidence (D) refracted light is polarized
JKCET - 2008
JKCET
Physics
Wave optics
Colours in thin films are due to
JKCET - 2008
JKCET
Physics
Wave optics