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Optomechanical interaction

In cavity optomechanics, we see that if one of the mirrors is oscillatory and the other one is fixed,the photons are not able to shift the oscillating mirror continuously in...

Asked on 12/10/2020 by Sarthak Girdhar

1 answer

How to measure wave direction in 2D?

The attached image shows a single state (edit: or rather, snapshot) of my system, which is a square sensor grid. While it is impossible to show using single images, the...

Asked on 12/10/2020

3 answer

Few conceptual doubts based on the effective capacitance of two metallic spheres joined by a metallic wire

The following problem is from Concepts of Physics by Dr. H.C.Verma, from the chapter "Capacitors", page 166, question 12: Problem:Two conducting spheres of radii $R_1$ and $R_2$ are...

Asked on 12/10/2020

1 answer

Spin-$n$ particle comes back to itself after $360/n$ degree rotation

On the Wikipedia page for spin, a claim is made that a spin-$n$ particle comes back to itself after a $360/n$ degree rotation. I quote:A...

Asked on 12/10/2020

0 answer

Why is this way of calculating the image distance wrong?

Consider a point source of light placed $40$ cm to the right of a thin converging lens of focal length $15$ cm. We wish to find the distance...

Asked on 12/10/2020 by Polemos

1 answer

Does degenerate matter have anything to do with the degeneracy of eigenvalues and eigenstates?

I came across degenerate matter (not the first time) after learning about degeneracy in eigenstates and eigenvalues. Are the two connected? Or is this just another use for the term?...

Asked on 12/10/2020 by Daniel Waters

1 answer

Why can't photons cancel each other?

The textbook argument against photons canceling each other draws upon the conservation of energy. Does this mean that energy conservation is a "stronger" principle than superposition? Waves in other media...

Asked on 12/10/2020 by Tfovid

5 answer

Questions about the large-instanton problem

The Problem.The issue that I'm talking about is the large-instanton problem of asymptotically-free non-abelian gauge theories. You can read about it in:[1.] Section 15 of 't Hooft's...

Asked on 12/10/2020

1 answer

What's the difference between Electromagnetic lens and an Electrostatic lens?

So I've read a couple of pages and watches a few videos but at their core neither has answered this basic question. I remember from the lecture that the prof....

Asked on 12/10/2020 by Caito

0 answer

Does fuel consumption depend completely on work done?

I recently encountered a question in a physics workbook, a car of mass m kg is lifted by two cranes to a height of h metres, the cranes lift the...

Asked on 12/10/2020 by ADITYA MITTAL 11E

1 answer

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