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Recent questions tagged lenses
+1
vote
1
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A beam of light is converging towards a point I on a screen.
asked
Mar 31, 2019
in
JEE
by
kratos
refraction of light
irodov
jee
lenses
optics
jee mains
geometrical optics
+2
votes
1
answer
A single converging lens is used as a simple microscope. In the position of maximum magnification,
asked
Mar 25, 2019
in
JEE
by
kratos
jee
lenses
class-10
optics
jee mains
class-12
+3
votes
1
answer
A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen
asked
Feb 15, 2019
in
JEE
by
kratos
irodov
class-11
jee
lenses
kvpy
optics
jee mains
geometrical optics
+1
vote
1
answer
P is a point on the axis of a concave mirror. The image of P, formed by the mirror, coincides with P.
asked
Feb 6, 2019
in
JEE
by
kratos
refraction of light
jee
lenses
optics
jee mains
class-12
spherical mirrors
+3
votes
1
answer
A plane-parallel plate is cut as shown in Fig., after which the lenses thus obtained are moved apart.
asked
Feb 2, 2019
in
JEE
by
kratos
optics
jee
jee mains
lenses
+1
vote
1
answer
The angular diameter of the solar disk when observed from the earth is 32 minutes of arc.
asked
Dec 30, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+2
votes
1
answer
An optical system consists of a converging lens whose focal length is 30 cm
asked
Dec 29, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+1
vote
1
answer
With the aid of a converging lens the image of a square of light is obtained on a screen.
asked
Dec 22, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+3
votes
1
answer
A lense behaves as a converging lens is air and diverging lens in water. The refractive index of the lens material is -
asked
Dec 15, 2018
in
Class 12
by
kratos
irodov
neet
jee
lenses
optics
jee mains
class-12
geometrical optics
+1
vote
1
answer
An image of a bright square is obtained on a screen with the aid of a convergent lens. The distance between the square and the lens is 40 cm.
asked
Nov 16, 2018
in
Class 12
by
kratos
neet
optical instruments
jee
aiims
lenses
optics
jee mains
ray optics
+3
votes
1
answer
Where should an object be placed so that the image formed by a thin lens is upright and the same size as the object?
asked
Nov 16, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+1
vote
1
answer
If the eye is kept very close to a converging lens (focal length = 10 cm) and at the optical centre of the lens and an object is kept at distance 'd'
asked
Oct 16, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+1
vote
1
answer
If the eye is kept very close to a converging lens (focal length = 10 cm) and at the optical centre of the lens and an object is kept at distance 'd'
asked
Sep 22, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+1
vote
1
answer
What is the smallest detail on an object that a man may distinguish with his ***** eye at a distance of 2 km?
asked
Sep 21, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+2
votes
1
answer
A converging pencil of rays passes through an opening in a screen, as shown in Fig..
asked
Sep 17, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+1
vote
1
answer
The rays of a converging pencil intersect at a point A. A diverging lens is placed in their path in plane B (Fig.).
asked
Aug 22, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+3
votes
1
answer
A converging beam of rays is incident on a diverging lens. Having passed through the lens the rays
asked
Jul 14, 2018
in
JEE
by
kratos
irodov
class-12
jee mains
geometrical optics
jee
optics
lenses
+2
votes
1
answer
Construct the image of an object in an optical system consisting of a converging lens and a flat mirror located in the focal plane of the lens.
asked
Jun 20, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+3
votes
1
answer
A point source **** on the optical axis of a converging lens. At which positions of the eye and for
asked
Jun 3, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
+2
votes
1
answer
Find the position of an image formed by an optical system consisting of a concave mirror with a focal length of 10 cm
asked
Jun 1, 2018
in
JEE
by
kratos
optics
jee
jee mains
lenses
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