JKCET SERIES Physics
Ray Optics And Optical Instruments
23 previous year questions.
Volume: 23 Ques
Yield: High
High-Yield Trend
1
2024 1
2019 4
2018 1
2017 2
2016 3
2015 4
2014 2
2013 1
2012 2
2011 1
2010 1
2006 Chapter Questions 23 MCQs
01
PYQ 2006
medium
physics ID: jkcet-20
Maximum lateral displacement of a ray of light incident on a slab of thickness is
1
2
3
4
02
PYQ 2010
medium
physics ID: jkcet-20
Which one of the following is not associated with the total internal reflection?
1
The mirage formation
2
Optical fibre communication
3
The glittering of diamond
4
Dispersion of light
03
PYQ 2011
medium
physics ID: jkcet-20
Rainbow is a phenomenon due to
1
dispersion alone
2
refraction alone
3
reflection alone
4
combined effect of dispersion, refraction and reflection
04
PYQ 2011
medium
physics ID: jkcet-20
A microscope is focussed on an ink mark on the top of a table. lf we place a glass slab of 3 cm thick on it, how should the microscope be moved to focus the ink spot again? The refractive index of glass is 1.5
1
2 cm upwards
2
2 cm downwards
3
1 cm upwards
4
1 cm downwards
05
PYQ 2012
medium
physics ID: jkcet-20
Which of the following optical phenomena is involved in the propagation of light in an optical fibre?
1
Refraction
2
Dispersion
3
interference
4
Total internal reflection
06
PYQ 2013
medium
physics ID: jkcet-20
When an object is placed from a diverging lens, its virtual image is formed from the lens. The focal length and power of lens are
1
F=-20 cm, P=-5 D
2
F=-40 cm, P=-5 D
3
F=-40 cm, P=-2.5 D
4
F=-20 cm, P=-2.5 D
07
PYQ 2013
medium
physics ID: jkcet-20
A magnifying glass of focal length is used to view an object by a person whose smallest distance of distinct vision is . If he holds the glass close to eye, the magnification is
1
5
2
6
3
2.5
4
3
08
PYQ 2014
medium
physics ID: jkcet-20
Which of the following relation is called mirror equation?
1
2
3
4
09
PYQ 2014
medium
physics ID: jkcet-20
Light from a point source in air falls on a spherical glass surface ( and radius of curvature ). The distance of the light source from the glass surface is . At what position, the image is formed?
1
2
3
4
10
PYQ 2014
medium
physics ID: jkcet-20
A concave mirror of focal length produces a real image times the size of the object. The distance of the object from the mirror is
1
2
3
4
11
PYQ 2014
medium
physics ID: jkcet-20
A compound microscope has a magnification of . The focal length of the eye-piece is If the final image is formed at the least distance of distinct vision the magnification produced by the objective is
1
2
3
4
12
PYQ 2015
medium
physics ID: jkcet-20
Consider a ray of light travelling from a denser to a rarer medium. If it is incident at the critical angle then
1
it will emerge out into the rarer medium
2
it will undergo total internal reflection
3
it will travel along the interface separating the two media
4
it will retrace its path
13
PYQ 2015
medium
physics ID: jkcet-20
Consider a bi-convex lens and a plano-convex lens, with radii of curvature of all the curved surfaces being same. If is the focal length of bi-convex lens then, the focal length of the plano-convex lens is
1
4 f
2
2 f
3
f
4
0.5 f
14
PYQ 2015
medium
physics ID: jkcet-20
A parallel narrow-beam of light is falling normally on a glass sphere. It will come to a focus
1
Inside the sphere (except at its centre)
2
On the surface of the sphere
3
Outside the sphere
4
Exactly at the centre of the sphere
15
PYQ 2016
easy
physics ID: jkcet-20
For a thin lens with radii of curvatures and and , refractive index and focal length , the factor is equal to
16
PYQ 2016
easy
physics ID: jkcet-20
For an object placed in front of a convex mirror of focal length , its image is formed
17
PYQ 2017
medium
physics ID: jkcet-20
A converging lens has a focal length of . To get an image of unit magnification the object should be placed at what distance from the converging lens?
1
2
3
4
18
PYQ 2018
medium
physics ID: jkcet-20
What is lateral shift with respect to optics ?
1
The parallel distance between the incident ray and the emergent ray
2
The perpendicular distance between the incident ray and the emergent ray
3
The perpendicular distance between the incident ray and the reflected ray
4
The parallel distance between the incident ray and the reflected ray
19
PYQ 2018
medium
physics ID: jkcet-20
Focal length, radius of curvature and power of a plane mirror respectively are
1
infinity, infinity and zero
2
infinity, infinity and infinity
3
zero, zero and finite
4
finite, zero, zero
20
PYQ 2018
medium
physics ID: jkcet-20
Dispersion without deviation is produced by two thin (small angled) prisms which are combined together. One prism has angle and refractive index . If the other prism has refractive index , what is its angle ?
1
2
3
4
21
PYQ 2018
medium
physics ID: jkcet-20
Due to atmospheric refraction effects, the day becomes longer by
1
minutes
2
minutes
3
minutes
4
minutes
22
PYQ 2019
medium
physics ID: jkcet-20
A quartz prism can produce a minimum deviation in a light beam. Then the minimum deviation produced by three prisms combined together is
1
2
3
4
23
PYQ 2024
medium
physics ID: jkcet-20
Multimode graded index fibers are manufactured from materials with ______.
1
Lower purity
2
Higher purity than multimode step index fibers
3
No impurity
4
Impurity as same as multimode step index fibers
About Ray Optics And Optical Instruments - JKCET
Ray Optics And Optical Instruments is a vital chapter for JKCET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
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