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Aadarsh Group Title

An attachment of Questions.

  • 2 years ago
  • 2 years ago

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  1. Aadarsh Group Title
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    Solve and explain all the questions given in the attachemnt file.

    • 2 years ago
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  2. apoorvk Group Title
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    length of night increases, and change to night from day and vice-versa would occur quite suddenly as there will be no atmosphere to cause diffraction as well scattering light rays.

    • 2 years ago
  3. Aadarsh Group Title
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    Okay. The other questions please......................

    • 2 years ago
  4. apoorvk Group Title
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    A prism has two inclined surfaces, so even if you the light is incident perpendicular to the first surface, it will bend while emerging from the second. (mudna toh hai hi)

    • 2 years ago
  5. Aadarsh Group Title
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    But is there any difference between the refraction of monochromatic and polychromatic light?

    • 2 years ago
  6. Ishaan94 Group Title
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    But why would night's period increase?

    • 2 years ago
  7. apoorvk Group Title
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    |dw:1334821169427:dw| ab ek aur image hoga shaayad, main soch nahi paa raha abhi, bata hoon ek minute ruko. The difference between refraction for monochromatic and polychromatic light is only this that polychromatic light is made up of more than one wavelengths of light. Now, for different wavelengths, relative refractive index is different, toh bending kisi mein kam kisi mein zyada hogi.(jaise color spectrum mein hota hai) @Ishaan94 explanation for why days would get shorter is that, when the earth then while rotating, when a certain longitude of it is just about to lose direct reception of sun rays, would suddenly get dark. BUT, in the present case, due to atmosphere (OOPS i forgot to mention the most important phenomena here - REFRACTION), light rays bend, and reach that portion of the earth for just a few more minutes than they would have. This elongates the daylight period.

    • 2 years ago
  8. apoorvk Group Title
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    |dw:1334821864367:dw|

    • 2 years ago
  9. Aadarsh Group Title
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    Good figure by the way @apoorvk bhai..............)

    • 2 years ago
  10. apoorvk Group Title
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    |dw:1334822038038:dw| Now in this question, there is no net force on the block due to the movement of the elevator, since it is moving with a constant velocity. But the lift moves up by 2m in that once second, and the block also moves by 2metres (since there is no net motion on the incline)

    • 2 years ago
  11. Aadarsh Group Title
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    @neha2050 didi, please try. @adityanaik28 bhai, please try.

    • 2 years ago
  12. Taufique Group Title
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    hey @ Aadarsh bhai kahan ho..

    • 2 years ago
  13. Aadarsh Group Title
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    @Taufique bhai, kahiye ji.

    • 2 years ago
  14. Taufique Group Title
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    av time nahi hai bhai rat tak in sab ka solution vej dunga bhai..Explanation k sath...

    • 2 years ago
  15. Aadarsh Group Title
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    Ji haan. Thanks a lot bhai.

    • 2 years ago
  16. Taufique Group Title
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    wo wala sin^-1x wala graph dekhkr samaj aya tha na bhai,or apparent depth wala physics ka question...

    • 2 years ago
  17. Aadarsh Group Title
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    Ji haan. Samajh mein to aaya hia.

    • 2 years ago
  18. Taufique Group Title
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    ok bhai thik hai iska v vejdunga bhai...

    • 2 years ago
  19. Aadarsh Group Title
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    Ji haan. Sure............)

    • 2 years ago
  20. Taufique Group Title
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    wo ruchi ko ap samjayega thora hehe

    • 2 years ago
  21. Aadarsh Group Title
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    ji haan. will try.

    • 2 years ago
  22. Taufique Group Title
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    chromatic light means jante ho ap kuch..

    • 2 years ago
  23. Aadarsh Group Title
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    Ji nahin. Itna kuch nahin. Abhi to apoorv bhai ne samjhaya tha aur mein thoda bahut samajh gaya.

    • 2 years ago
  24. Taufique Group Title
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    kiya samje...

    • 2 years ago
  25. Aadarsh Group Title
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    Jo bhaiya ne definition diya hai, regarding polychromatic light is made of more than one wavelength of light..............

    • 2 years ago
  26. Taufique Group Title
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    thik hai bhai.. sahi kha usne Aadarsh...

    • 2 years ago
  27. Aadarsh Group Title
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    Yeah. aap raat tak sab kuch post kar dijiye.

    • 2 years ago
  28. Taufique Group Title
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    thik hai beye bhai kar dunga..

    • 2 years ago
  29. apoorvk Group Title
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    Hmm, @Aadarsh continuing with the lift-question. So, the block moves up by 2m. And the force of friction is acting at an angle of 45 degrees with the displacement. Its magnitude is (mu *mg * cos45) = mg*sin45 (since the FBD shows that the gravitational force along the incline is being balanced by the frictinal force, causing the block to remain at rest w.r.t. the incline) So work done by friction = = W = F.s.cos(x) ...here F = frictional force's magnitude, s=displacement, x= angle between the direction of the force that is acting and the displacement = 45 degrees S0, W = mgsin45 * s * cos 45 = 10/sqrt2 * 2 * 1/sqrt2 = 10 J.

    • 2 years ago
  30. sanjeeth Group Title
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    i wanted to post but i needed to shut the computer

    • 2 years ago
  31. Taufique Group Title
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    • 2 years ago
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  32. Taufique Group Title
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    |dw:1334963628922:dw|

    • 2 years ago
  33. Taufique Group Title
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    • 2 years ago
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