JKCET SERIES Physics
Wave Optics
11 previous year questions.
Volume: 11 Ques
Yield: Medium
High-Yield Trend
1
2019 1
2017 1
2015 2
2013 3
2012 1
2009 2
2008 Chapter Questions 11 MCQs
01
PYQ 2008
easy
physics ID: jkcet-20
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
1
(A) and (D) are true
2
(A) and (B) are true
3
(A) and (C) are true
4
(B) and (C) are true
02
PYQ 2008
medium
physics ID: jkcet-20
Colours in thin films are due to
1
diffraction phenomenon
2
scattering phenomenon
3
interference phenomenon
4
polarization phenomenon
03
PYQ 2009
medium
physics ID: jkcet-20
In Young's double slit experiment, the fringe width with light of wavelength is . The fringe width, when the wavelength of light is changed to is
1
2
3
4
04
PYQ 2012
medium
physics ID: jkcet-20
Which of the following is false for interference of light?
1
Coherence of the sources is an essential condition for interference
2
The minima of the interference pattern need not be of zero intensity
3
Interference simply redistributes light energy, without destroying any of it
4
The minima of the interference pattern must always be of zero intensity
05
PYQ 2012
medium
physics ID: jkcet-20
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?
1
Reduce the distance between the slit and screen by half
2
Reduce the distance between the slit and the screen to the original separation
3
Double the distance between the slit and the screen
4
No need to do anything, as the width of the central maxima does not depend on the slit width
06
PYQ 2012
medium
physics ID: jkcet-20
Which of the following is true for the minimum angular separation of two stars, can be resolved by a telescope? In the following aperture is the diameter of the objective
1
it decreases with the increase in aperture of the telescope
2
it is independent of the aperture of the telescope
3
it increases linearly with the aperture of the telescope
4
it increases quadratic ally with the aperture of the telescope
07
PYQ 2013
medium
physics ID: jkcet-20
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
1
2
3
4
08
PYQ 2013
medium
physics ID: jkcet-20
If two slits in Young's experiment are apart and fringe width on a screen away is the wavelength of light illuminating the slits is
1
500 nm
2
600 nm
3
400 nm
4
300 nm
09
PYQ 2015
medium
physics ID: jkcet-20
Values for Brewster's angle can be
1
only less than
2
only greater than
3
any value in the range to except
4
any value in the range to including
10
PYQ 2017
medium
physics ID: jkcet-20
In a Young?s double slit experiment, the two slits which are separated by are illuminated with a monochromatic light of wavelength angstorm. The interference pattern is observed on a screen placed at a distance of from the slits. Find the number of bright fringes formed over width on the screen.
1
2
3
4
11
PYQ 2019
medium
physics ID: jkcet-20
In an experiment using Young?s double slit, what will be the value of fringe width , if the wavelength is doubled?
1
2
3
4