Recent content by Arup Biswas

  1. Arup Biswas

    Schools How Can I Improve My Performance in Viva Exams?

    Thanks choppy and whirick! It will help me a lot [emoji4]
  2. Arup Biswas

    I Are plane waves actually spherical waves at large distance?

    I am doubting that any plane wave is generated from a spherical wave. At large distance the radii of curvature becomes so large that we can think it as plane. Like we se Earth surface as plane though it is spherical. Is it true? I have a mathematical proof for my argument!
  3. Arup Biswas

    Schools How Can I Improve My Performance in Viva Exams?

    After thoroughly reading a topic, when I know I almost understand this, I stutter in giving Viva in front of my teachers! It's not that they ask too hard questions problem is either I can not get what answer they want or they can not understand what I try to say! Sometimes they ask so easy...
  4. Arup Biswas

    B Fresnel's Formula & Ether Drag: Resnick Book Confusion

    Little confusion regarding one line on Resnick's book! This says light dragged by refractive medium ok but how 'by the ether'? In the rest of the topic he says ether is stationary with respect to the observer(i.e. not dragged along by the water and that is how the Fresnel's exp. was explained).
  5. Arup Biswas

    Troubleshooting Mass & Spring Dynamics

    Thank you very much sir!
  6. Arup Biswas

    Troubleshooting Mass & Spring Dynamics

    The 1st one you assumed!
  7. Arup Biswas

    Troubleshooting Mass & Spring Dynamics

    Please tell me which one is wrong! When I put a mass M on one end of a spring!
  8. Arup Biswas

    Moment of Inertia of a Disc

    In the picture the question marked spot is confusing me. Should the MI be calculated in this ugly way? That we do not consider the points in between and on dx! Why only x is taken as the distance? You may say take x+dx, resulting dx in the exapnsion and the dx from the mass to square and being...
  9. Arup Biswas

    Blue Light from a Blackbody Radiator

    My point is can we heat a blackbody to get mostly Blue radiation??
  10. Arup Biswas

    Blackbody Radiation: Explained!

    I did not checked the detailed proof what they have done! Probably iy would help what is their arrangement and how acceleration occurs! #charles!
  11. Arup Biswas

    Blue Light from a Blackbody Radiator

    From Wien's law it is seen that approx 6500K(Greater than sun's temp) needed to heat a body to blue! But we see so much blue light(uv ray)! Are they formed from any different mechanism rather than heating?
  12. Arup Biswas

    Blackbody Radiation: Explained!

    Eisberg Resnick also says that most of the radiation occurs due the accelerated electrons! He has also a proof of it!
  13. Arup Biswas

    Blackbody Radiation: Explained!

    Firstly I would like to go in more details how all the oscillations cancels out? I think oscillation occurs but the radiation emitted by one of them must be canceled out by another particle's radiation, if we take light to be wave! Now in answer to Delta, should I assume every radiation to be...
Back
Top