Geometrical Optics PYQs - Last 10 Years
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PhysicsOptics2017-2026
Practice 240 JEE Main Physics questions from Geometrical Optics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Last 10 Years Geometrical Optics Questions
Showing 40 of 240 filtered questions.
1Geometrical Optics
A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A
plane mirror is placed at a distance of 2 m behind the lens. The position and nature of the final
image formed by the system is :
plane mirror is placed at a distance of 2 m behind the lens. The position and nature of the final
image formed by the system is :
MCQ+4 / -12020
2Geometrical Optics
A double convex lens has power P and same radii of curvature R of both the surfaces. The radius of
curvature of a surface of a plano-convex lens made of the same material with power 1.5 P is :
curvature of a surface of a plano-convex lens made of the same material with power 1.5 P is :
MCQ+4 / -12020
3Geometrical Optics
A compound microscope consists of an
objective lens of focal length 1 cm and an
eyepiece of focal length 5 cm with a separation
of 10 cm.
The distance between an object and the
objective lens, at which the strain on the eye is
minimum is $$...
objective lens of focal length 1 cm and an
eyepiece of focal length 5 cm with a separation
of 10 cm.
The distance between an object and the
objective lens, at which the strain on the eye is
minimum is $$...
INTEGER+4 / -02020
4Geometrical Optics
For a concave lens of focal length f, the relation
between object and image distances u and v,
respectively, from its pole can best be
represented by (u = v is the reference line) :
between object and image distances u and v,
respectively, from its pole can best be
represented by (u = v is the reference line) :
MCQ+4 / -12020
5Geometrical Optics
A prism of angle A = 1o has a refractive index
\(\mu\) = 1.5. A good estimate for the minimum angle
of deviation (in degrees) is close to \({N \over {10}}\).
Value of N is ____.
\(\mu\) = 1.5. A good estimate for the minimum angle
of deviation (in degrees) is close to \({N \over {10}}\).
Value of N is ____.
INTEGER+4 / -02020
6Geometrical Optics
In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the
eye-piece. The focal length of its objective lens is 1 cm. If the magnification is 100 and the tube
length of the microscope is 20 cm, then the ...
eye-piece. The focal length of its objective lens is 1 cm. If the magnification is 100 and the tube
length of the microscope is 20 cm, then the ...
INTEGER+4 / -02020
7Geometrical Optics
The distance between an object and a screen is 100 cm. A lens can produce real image of the
object on the screen for two different positions between the screen and the object. The distance
between these two positions is 40 cm. If the power ...
object on the screen for two different positions between the screen and the object. The distance
between these two positions is 40 cm. If the power ...
INTEGER+4 / -02020
8Geometrical Optics
An observer can see through a small hole on the side of a jar (radius 15 cm) at a point at height of
15 cm from the bottom (see figure). The hole is at a height of 45 cm. When the jar is filled with a
liquid up to a height of 30 cm the same...
15 cm from the bottom (see figure). The hole is at a height of 45 cm. When the jar is filled with a
liquid up to a height of 30 cm the same...
INTEGER+4 / -02020
9Geometrical Optics
When an object is kept at a distance of 30 cm from a concave mirror, the image is formed at a
distance of 10 cm from the mirror. If the object is moved with a speed of 9 cms–1, the speed
(in cms–1) with which image moves at that instant is ...
distance of 10 cm from the mirror. If the object is moved with a speed of 9 cms–1, the speed
(in cms–1) with which image moves at that instant is ...
INTEGER+4 / -02020
10Geometrical Optics
A spherical mirror is obtained as shown in the
figure from a hollow glass sphere. If an object
is positioned in front of the mirror, what will be
the nature and magnification of the image of
the object? (Figure drawn as schematic and not
t...
MCQ+4 / -12020
11Geometrical Optics
A light ray enters a solid glass sphere of
refractive index \(\mu\) = \(\sqrt 3\) at an angle of incidence
60o. The ray is both reflected and refracted at
the farther surface of the sphere. The angle (in
degrees) between the reflected and...
refractive index \(\mu\) = \(\sqrt 3\) at an angle of incidence
60o. The ray is both reflected and refracted at
the farther surface of the sphere. The angle (in
degrees) between the reflected and...
INTEGER+4 / -02020
12Geometrical Optics
A convex lens is put 10 cm from a light source and it makes a sharp image on a screen, kept 10 cm from the lens. Now a glass block (refractive index 1.5) of 1.5 cm thickness is placed in contact with the light source. To get the sharp imag...
MCQ+4 / -12019
13Geometrical Optics
Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M1) and parallel to the second mirror (M2) is finally reflected from the second mirror (M2) parallel to the first mirror (M1). The angle bet...
MCQ+4 / -12019
14Geometrical Optics
A concave mirror for face viewing has focal
length of 0.4 m. The distance at which you hold
the mirror from your face in order to see your
image upright with a magnification of 5 is :
length of 0.4 m. The distance at which you hold
the mirror from your face in order to see your
image upright with a magnification of 5 is :
MCQ+4 / -12019
15Geometrical Optics
A thin convex lens L (refractive index = 1.5)
is placed on a plane mirror M. When a pin is
placed at A, such that OA = 18 cm, its real
inverted image is formed at A itself, as shown
in figure. When a liquid of refractive index μ1
is put bet...
is placed on a plane mirror M. When a pin is
placed at A, such that OA = 18 cm, its real
inverted image is formed at A itself, as shown
in figure. When a liquid of refractive index μ1
is put bet...
MCQ+4 / -12019
16Geometrical Optics
A convex lens of focal length 20 cm produces
images of the same magnification 2 when an
object is kept at two distances x1 and x2
(x1 > x2) from the lens. The ratio of x1 and x2
is :-
images of the same magnification 2 when an
object is kept at two distances x1 and x2
(x1 > x2) from the lens. The ratio of x1 and x2
is :-
MCQ+4 / -12019
17Geometrical Optics
In figure, the optical fiber is \(l\) = 2m long and
has a diameter of d = 20 μm. If a ray of light
is incident on one end of the fiber at angle
\(\theta _1\) = 40°, the number of reflection it makes
before emerging from the other end is clo...
has a diameter of d = 20 μm. If a ray of light
is incident on one end of the fiber at angle
\(\theta _1\) = 40°, the number of reflection it makes
before emerging from the other end is clo...
MCQ+4 / -12019
18Geometrical Optics
An upright object is placed at a distance of
40 cm in front of a convergent lens of focal
length 20 cm. A convergent mirror of focal
length 10 cm is placed at a distance of 60 cm
on the other side of the lens. The position and
size of the f...
40 cm in front of a convergent lens of focal
length 20 cm. A convergent mirror of focal
length 10 cm is placed at a distance of 60 cm
on the other side of the lens. The position and
size of the f...
MCQ+4 / -12019
19Geometrical Optics
A convex lens (of focal length 20 cm) and a
concave mirror, having their principal axes
along the same lines, are kept 80 cm apart from
each other. The concave mirror is to the right
of the convex lens. When an object is kept at
a distance ...
concave mirror, having their principal axes
along the same lines, are kept 80 cm apart from
each other. The concave mirror is to the right
of the convex lens. When an object is kept at
a distance ...
MCQ+4 / -12019
20Geometrical Optics
What is the position and nature of image formed by lens combination shown in figure ? (f1, f2 are focal lengths)
MCQ+4 / -12019
21Geometrical Optics
A point source of light, S is placed at distance L in front of the centre of plane mirror of width d which is hanging vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror, at a distance 2L as shown be...
MCQ+4 / -12019
22Geometrical Optics
Formation of real image using a biconvex lens is shown below :
If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen ?
If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen ?
MCQ+4 / -12019
23Geometrical Optics
A plano-convex lens (focal length f2, refractive index \(\mu\)2, radius of curvature R) fits exactly into a plano-concave lens (focal length f1, refractive index \(\mu\)1, radius of curvature R). Their plane surfaces are parallel to each ...
MCQ+4 / -12019
24Geometrical Optics
A concave mirror has radius of curvature of 40 cm. It is at the bottom of a glass that has water filled up to 5
cm (see figure). If a small particle is floating on the surface of water, its image as seen, from directly above
the glass, is a...
cm (see figure). If a small particle is floating on the surface of water, its image as seen, from directly above
the glass, is a...
MCQ+4 / -12019
25Geometrical Optics
A transparent cube of side, made of a material of refractive index \(\mu\)2, is immersed in a liquid of refractive
index \(\mu\)1(\(\mu\)1 < \(\mu\)2). A ray is incident on the face AB at an angle \(\theta\)(shown in the figure). Total...
index \(\mu\)1(\(\mu\)1 < \(\mu\)2). A ray is incident on the face AB at an angle \(\theta\)(shown in the figure). Total...
MCQ+4 / -12019
26Geometrical Optics
The variation of refractive index of a crown glass thin prism with wavelength of the incident light is shown. Which of the following graphs is the correct one, if Dm is the angle of minimum deviation?
MCQ+4 / -12019
27Geometrical Optics
An object is at a distance of 20 m from a convex lens of focal length 0.3 m. The lens forms an image of the object. If the object moves away from the lens at a speed of 5 m/s, the speed and direction of the image will be :
MCQ+4 / -12019
28Geometrical Optics
A monochromatic light is incident at a certain angle on an equilateral triangular prism and suffers minimum deviation. If the refractive index of the material of the prism is \(\sqrt 3\), then the angle of incidence is:
MCQ+4 / -12019
29Geometrical Optics
A plano convex lens of refractive index \(\mu\)1 and focal length ƒ1 is kept in contact with another plano concave lens of refractive index \(\mu\)2 and focal length ƒ2. If the radius of curvature of their spherical faces is R each and ƒ1...
MCQ+4 / -12019
30Geometrical Optics
The eye can be regarded as a single refracting surface. The radius of curvature of this surface is equal to that of cornea (7.8 mm). This surface separateds two media of refractive indices 1 and 1.34. Calculate the distance from the refract...
MCQ+4 / -12019
31Geometrical Optics
A ray of light AO in vacuum is incident on a
glass slab at angle 60° and refracted at angle 30°
along OB as shown in the figure. The optical path
length of light ray from A to B is:
glass slab at angle 60° and refracted at angle 30°
along OB as shown in the figure. The optical path
length of light ray from A to B is:
MCQ+4 / -12019
32Geometrical Optics
One plano-convex and one plano-concave lens
of same radius of curvature 'R' but of different
materials are joined side by side as shown in
the figure. If the refractive index of the material
of 1 is \(\mu\)1 and that of 2 is \(\mu\)2, the...
of same radius of curvature 'R' but of different
materials are joined side by side as shown in
the figure. If the refractive index of the material
of 1 is \(\mu\)1 and that of 2 is \(\mu\)2, the...
MCQ+4 / -12019
33Geometrical Optics
The graph shows how the magnification m produced by a thin lens varies with image distance v. What is the focal length of the lens used?
MCQ+4 / -12019
34Geometrical Optics
A ray of light is incident at an angle of 60o on one face of a prism of angle 30o. The emergent ray of light makes an angle of 30o with incident ray. The angle made by the emergent ray with second face of prism will be :
MCQ+4 / -12018
35Geometrical Optics
A planoconvex lens becomes an optical system of \(28\) \(cm\) focal length when its plane surface is silvered and illuminated from left to right as shown in Fig-A.
If the same lens is instead silvered on the curved surface and illuminated f...
If the same lens is instead silvered on the curved surface and illuminated f...
MCQ+4 / -12018
36Geometrical Optics
A particle is oscillating on the \(X\)-axis with an amplitude \(2\) \(cm\) about the point \({x_0} = 10\,cm,\) with a frequency \(\omega\). A concave mirror of local length \(5\) \(cm\) is placed at the origin (see figure).
Identify the co...
Identify the co...
MCQ+4 / -12018
37Geometrical Optics
A convergent doublet of separated lenses, corrected for spherical aberration, has resultant focal length of 10 cm. The separation between the two lenses is \(2\) cm. The focal lengths of the component lenses are :
MCQ+4 / -12018
38Geometrical Optics
In an experiment a convex lens of focal length 15 cm is placed coaxially on an optical bench in front of a convex mirror at a distance of 5 cm from it. It is found that an object and its image coincide, if the object is placed at a distance...
MCQ+4 / -12017
39Geometrical Optics
Let the refractive index of a denser medium with respect to a rarer medium be n12 and its critical angle be θC . At an angle of incidence A when light is travelling from
denser medium to rarer medium, a part of the light is reflected and th...
denser medium to rarer medium, a part of the light is reflected and th...
MCQ+4 / -12017
40Geometrical Optics
A diverging lens with magnitude of focal length 25 cm is placed at a distance of 15cm from a converging
lens of magnitude of focal length 20cm. A beam of parallel light falls on the diverging lens. The final
image formed is:
lens of magnitude of focal length 20cm. A beam of parallel light falls on the diverging lens. The final
image formed is:
MCQ+4 / -12017