Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged optics
+3
votes
1
answer
Consider the following statement: The principle of total internal reflection is applicable to explain the
asked
Apr 7, 2019
in
Class 12
by
kratos
csat
ray optics and optical instruments
optics and sound
communication systems
optics
class-12
+3
votes
0
answers
Distribute Rs. 632 amongst A, B and C in such a way that B will get 20 % more than A
asked
Apr 6, 2019
in
JEE
by
kratos
linear equations in one variable
number-system
class-8
money
jee
quadratic equations
class-10
optics
jee mains
class-5
+2
votes
1
answer
Expression for the magnifying power of astronomical telescope at least distance of distinct vision
asked
Apr 6, 2019
in
JEE
by
kratos
optical instruments
jee
optics
bseb model set
jee mains
class-12
+1
vote
1
answer
The rays of different colours fail to converge at a point after going through a converging lens. This defect is called
asked
Apr 6, 2019
in
Class 10
by
kratos
ray optics and optical instruments
optics
class-10
geometrical optics
spherical mirrors
+1
vote
1
answer
If the distance d is varied, then identify the correct statement (a) The angular width does not change
asked
Apr 6, 2019
in
JEE
by
kratos
irodov
jee
optics
jee mains
diffraction of light
+3
votes
1
answer
An astronomical telescope has a large aperture to (a) reduce spherical aberration.
asked
Apr 6, 2019
in
JEE
by
kratos
optical instruments
ray optics and optical instruments
jee
class-11
optics
jee mains
ray optics
class-12
+3
votes
1
answer
Two tuning forks P and Q when set vibrating gives 4 beats/ second.
asked
Apr 6, 2019
in
JEE
by
kratos
motion
oscillations
jee
optics
jee mains
wave
+1
vote
1
answer
Define critical angle. Explain total internal reflection using a neat diagram. neat diagram.
asked
Apr 6, 2019
in
Class 12
by
kratos
reflection of light
optics
class-10
icse
class-12
+3
votes
1
answer
In a Young'* double slit experiment, the separation between the slits is 0.15 mm. In the experiment, a source of light
asked
Apr 5, 2019
in
Class 12
by
kratos
neet
class-11
jee
optics
light waves
jee mains
+1
vote
1
answer
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.
asked
Apr 5, 2019
in
JEE
by
kratos
irodov
cbse
jee
optics
class-10
injso
jee mains
jee mains 2019
ray optics
geometrical optics
+2
votes
1
answer
A double convex lens made of glass of refractive index 1.6 has radius of curvature 15 cm each.
asked
Apr 5, 2019
in
Class 12
by
kratos
neet
cbse
jee
optics
jee mains
class-12
+1
vote
1
answer
A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5 . The distance of virtual image
asked
Apr 5, 2019
in
JEE
by
kratos
class-12
optics
jee
jee mains
+1
vote
1
answer
A thin sheet of glass (μ = 1.5) of thickness 6 microns introduced in the path of one of interfering beams
asked
Apr 4, 2019
in
Class 12
by
kratos
motion
neet
upsee
jee
aiims
optics
jee mains 2019
jee mains
wave
+3
votes
1
answer
A 10 mW laser beam (λ0 = 0.6 μm) is launched on a lens of focal length 10 cm . The diameter of the laser beam is 4 mm .
asked
Apr 4, 2019
in
JEE
by
kratos
irodov
jee
optics
jee mains 2019
jee mains
diffraction of light
+3
votes
1
answer
If the frequency of the source is doubled in Young'* double slit experiment, then fringe width (β) will be –
asked
Apr 4, 2019
in
Class 12
by
kratos
neet
jee
optics
jee mains
class-12
+1
vote
1
answer
What is the effect on the interference fringes in a Young’* double-slit experiment when the monochromatic source is replaced
asked
Apr 3, 2019
in
Class 12
by
kratos
optics
class-12
wave optics
+1
vote
1
answer
Write Brewster law of polarisation of light.
asked
Apr 3, 2019
in
JEE
by
kratos
isc
irodov
cbse
polarization of light
jee
optics
icse
jee mains
class-12
wave optics
polarisation
+3
votes
1
answer
Red ******** light is used in traffic signals to indicate the vehicles to stop, because compared to other colours red light
asked
Apr 3, 2019
in
Class 10
by
kratos
cbse
class-9
optics
class-10
the rules of the road
+1
vote
1
answer
Making use of the result obtained in the foregoing problem, find the conditions defining the angular
asked
Apr 3, 2019
in
JEE
by
kratos
irodov
jee
thermodynamics
optics
equation of the gas state
jee mains
diffraction of light
+1
vote
1
answer
Does short-sightedness (myopia) or long sightedness (hypermetropia) imply necessarily that the eye has partially lost its ability of accommodation?
asked
Apr 3, 2019
in
Class 12
by
kratos
the human eyes and the colorful world
class-12
class-10
neet
ray optics
optics
optical instruments
special senses
aiims
To see more, click for the
full list of questions
or
popular tags
.