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Recent questions tagged refraction through a lens
+2
votes
1
answer
For the determination of the focal length of a convex mirror, a convex lens is required because
asked
Mar 29, 2019
in
JEE
by
kratos
refraction through lenses
cbse
optical instruments
jee
refraction through a lens
class-10
icse
optics
jee mains
class-12
+3
votes
1
answer
The diagram alongside shows a lens as a combination of a glass block and two prisms.
asked
Mar 24, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+2
votes
1
answer
Two triangular glass prisms are kept together connected through their rectangular side. A light beam is passed through one side of the combination.
asked
Mar 22, 2019
in
JEE
by
kratos
ray optics and optical instruments
jee
class-11
refraction through a lens
kvpy
class-10
icse
jee mains
the human eye and the colourful world
+3
votes
1
answer
Distinguish between a real and a virtual image.
asked
Mar 19, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+2
votes
1
answer
A ray of light, after refraction through a concave lens, emerges parallel to the principal axis.
asked
Mar 13, 2019
in
Class 10
by
kratos
refraction of light
class-10
icse
refraction through a lens
+2
votes
1
answer
What are the three principal rays that are drawn to construct the ray diagram for the image formed by
asked
Mar 10, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+3
votes
1
answer
A lens forms an upright and diminished image of an object irrespective of its position. What kind of lens is this?
asked
Mar 2, 2019
in
Class 10
by
kratos
refraction through lenses
optical instruments
refraction through a lens
class-10
icse
+3
votes
1
answer
A student wants to project the image of a candle flame on a screen 80 cm in front of a mirror
asked
Feb 26, 2019
in
Class 10
by
kratos
light – reflection and refraction
class-10
refraction through a lens
cbse
+1
vote
1
answer
How will you differentiate between a convex and a concave lens by looking at (i) a distant object, (ii) a printed page?
asked
Feb 15, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+1
vote
1
answer
Define the term principal foci of a concave lens and show them with the help of proper diagrams.
asked
Feb 13, 2019
in
Class 10
by
kratos
refraction through lenses
optical instruments
refraction through a lens
class-10
icse
+2
votes
1
answer
The power of a lens is + 2.0 D. Find its focal length and state the kind of the lens.
asked
Feb 9, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+2
votes
1
answer
A student wants to project the image of a candle flame on the walls of the school laboratory by using a mirror.
asked
Feb 4, 2019
in
Class 10
by
kratos
light – reflection and refraction
class-10
refraction through a lens
cbse
+3
votes
1
answer
Define the term principal foci as applied to a concave lens. Illustrate your answer with the aid of proper diagrams.
asked
Feb 4, 2019
in
Class 10
by
kratos
refraction through lenses
optical instruments
refraction through a lens
class-10
icse
+2
votes
1
answer
What is a lens?
asked
Feb 3, 2019
in
Class 10
by
kratos
light – reflection and refraction
optical instruments
refraction through a lens
class-10
icse
+1
vote
1
answer
A beam of light incident on a convex lens parallel to its principal axis converges at a point on the principal axis.
asked
Jan 31, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+1
vote
1
answer
A parallel oblique beam of light falls on a (i) convex lens, (ii) concave lens. Draw a diagram in each case
asked
Jan 29, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+3
votes
1
answer
Define the term principal foci of a convex lens and illustrate your answer with the aid of proper diagrams.
asked
Jan 25, 2019
in
Class 10
by
kratos
refraction through lenses
optical instruments
refraction through a lens
class-10
icse
+1
vote
1
answer
A concave lens forms the image of an object which is: (a) virtual, inverted and diminished.
asked
Jan 24, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
+3
votes
1
answer
When the tube length of microscope is increased, its magnifying power:
asked
Jan 10, 2019
in
JEE
by
kratos
jee
refraction through a lens
optics
icse
bseb model set
jee mains
class-10
class-12
+1
vote
1
answer
The diagram given below in Fig. 5.58 shows the position of an object OA in relation to a converging lens whose foci
asked
Jan 6, 2019
in
Class 10
by
kratos
class-10
icse
refraction through a lens
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