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Ashutosh Thapa • over 1 year ago

Guys I've exams from tomorrow

"PHYSICS "

Wish me luck!!!!

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Rabin Kalikote • asked a question

The speed of light does not depend upon the temperature of air but the speed of sound depends on it. Why?

As we know that wave of sound is a mechanical wave and its speed is given by

v = (γRT/M)

whereas the wave of light is an electromagnetic wave and its speed is given by

c = (1/εoμo)

So speed of sound depends on temperature of air but speed of light doesn't.

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NANDANI KUMARI • asked a question

Following reactions occur at cathode during the electrolysis of aqueous copper (II) chloride solution:

Cu2+(aq) + 2 e-2 ———–> Cu(s) E = + 0.34 V

H+(aq) + e-1 ————-> 1/2H2(g) E = 0.00 V

On the...

SinceECu2+/Cuhas a greater positive value thanEH+/H, the reaction that is feasible at the cathode is

Cu2+(aq)+2eCu(s)

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Puspak Sah • asked a question

Difference between Gram-Atomic mass(g atom) and Gram Molecular mass(g mole).

The difference between Gram atomic mass and Gram atomic molecular are given below:

Gram atomic mass	Gram molecular mass
1.The mass of 6.023 x 10²³atoms of one mole atom of any element when expressed in terms of grams is called gram atomic mass.	1.The mass of 6.023 x 10²³molecules or 1 mole molecule of any substance expressed in grams is called gram molecular mass.
2.It is used to calculate the mass of an atom.	2. It is used to calculate the mass of a molecule/molecular compound.
3. It is...

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Nikas Ghimire • almost 2 years ago

There are different ways to visualize infinity to ponder upon. This is some random thing about infinity in my head which I'll be mentioning.

Imagine any number, Keep on adding a certain value to it, Since we are talking big here, there is no limit to how much you add.

Keep on adding, Imagine that the progress of increment is like a progress bar. So, Is the progress bar really progressing? Since it doesnt really have an end and no...

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Rabin Kalikote

Where could be the end? Any thoughts?

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