All Questions
Tagged with optics homework-and-exercises
337
questions
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Relativity problem about light signals and rockets equipped with mirrors [closed]
I find in a relativity book a problem that states:
"A rocket with its own length $L$ moves away from Earth at a constant velocity $v$. A radar signal emitted from a ground station is reflected ...
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0
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26
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Can we see real images with lens? [duplicate]
There was this question.
In an experiment to determine the focal length of a convex lens, a
student obtained a sharp inverted image of a distant tree on the
screen behind the lens. She then removed ...
1
vote
1
answer
31
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Effect of incident angle on wavelength of transmitted wave for normal polarisation?
In my electrodynamcis assignment I'm being asked to derive the wavelength of a normally polarised wave transmitted through a glass/air interface as a function of $n_1$ (the refractive index of the ...
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0
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How to find out the relation between liquid lens curvature and changing the focal point? [duplicate]
I have a question regarding liquid lens.
how much we have to change the curvature to get an image shift of 30mm?
3
votes
4
answers
643
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Refraction of light through a slab of variable refractive index
Here I am posting a question of Jee Adv. 2023 based on refraction.
A monochromatic light wave is incident normally on a glass slab of
thickness 𝑑, as shown in the figure. The refractive index of the ...
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0
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22
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What is the relationship between the energy absorbed and reemitted by an atom?
What is the relationship between the energy absorbed and emitted by an atom with the model of Lorentz?
In the Lorentz model of an atom, we have that, using the effective cross-sections we might get ...
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votes
1
answer
130
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A question related to Newton's Rings (SOLVED)
I was solving this question,
I arrived at the correct answer which is 'A' the reason 'C' and 'D' are incorrect is cuz the fringes would eventually converge as if we look at this question from another ...
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1
vote
1
answer
71
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Snell's Law- Extraordinary ray
I applied the snell's law to find the angle of refraction of the Ordinary and Extraordinary ray. And I got the correct answer 3.51. But I know my approach to the question is wrong because I applied ...
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0
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52
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Need help with experimental setup to measure Birefringence [closed]
First message here, sorry if this is scrappy:
I am looking to measure the birefringence of multiple crystalline structures (calcite, ice, etc), and came across this methodology:
Shine a laser at ...
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votes
1
answer
61
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When does magnification not depend on distance of object? [closed]
Two thin lenses share a common optical axis. Their focal lengths are f1 = 20 cm, respectively and f2=50 cm. In front of the first lens at distance x>f1 there is an item. On the screen behind the ...
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2
answers
63
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Why the consecutive spherical wavefronts produced by a rest point source are not equidistant? [closed]
I learnt that a point source produces spherical wavefronts and i know the reasoning behind that too and while studying the concept again a question popped in my mind, that "Are those spherical ...
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Refraction of light - Huygens' Principle
To elucidate the rationale behind the bending of light as it transitions between different mediums, Huygens' principle is predominantly employed. The procedure, as demonstrated in this video (link: ...
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votes
1
answer
84
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What's a safe, easily executable experiment to confirm that quantization of light occurs directly to the retina? [closed]
What's a safe, easily executable experiment to confirm that quantization of light occurs directly to the retina.
We know that light is quantized when projected on to a surface, or on to an inanimate ...
2
votes
2
answers
130
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Do Normal Incidence contradicts the definition of refraction?
Professor told our class that if someone wants to define refraction in words, it can be done as the following, The deviation of light from its path when it passes from one medium to another is called ...
user380777
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1
answer
61
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Why the angle between incident ray and normal is 0° and not 180° if incident ray is directed perpendicular to "plane" of plane mirror?
Here the incident ray is normal to the plane of plane mirror, that is obvious but why everybody say that this ray is making an angle 0° with normal, why the angle is not 180° ? Are they relating it ...
user378646