how was physics paper 12? (no discussions till 24 hours)

[Moi]

There were two first orders one above zero order and one below... if you use the formula sin^-1 (wavelength/D) you would find the angle between the zero order and 1st order only.. But the question wanted the angle between the two first orders so you need to multiply by 2

it was the diffraction grating .....
i cant remember the wording of question but the ans was D :/

But the question states D is the distance between the slit...thats not diffraction grating

 

[Hassan Ali Abid]

But the question states D is the distance between the slit...thats not diffraction grating

wait for a week ..i will get question ppr then i will see what was the exact question

 

[Irahman]

what was the answer for that P R.........was it the displacement/C??

 

[Nikhil_King]

But the question states D is the distance between the slit...thats not diffraction grating

Just got the paper, the question goes: Light of wavelength _ passes through a diffraction grating...so answer is D.

 

[Nikhil_King]

It was definitely only downwards arrow because at the top only the downwards acceleration is active while horizontal is zero plus velocity constant and in the question force was asked as while acc is active downwards surely gravitational force would be there only air resistance wasnt mentioned...OK

It said that it was projected in air, so can't be downward only, must down + left

 

[Moi]

wait for a week ..i will get question ppr then i will see what was the exact question

That will be much appreciated! Please do mention me when you get the paper. Thank you

 

[Moi]

Just got the paper, the question goes: Light of wavelength _ passes through a diffraction grating...so answer is D.

can you you please send me the paper? Thx

 

[Sherko]

Just got the paper, the question goes: Light of wavelength _ passes through a diffraction grating...so answer is D.

please can u send me the paper thnx a lot!

 

[Irahman]

Just got the paper, the question goes: Light of wavelength _ passes through a diffraction grating...so answer is D.

pls send me the paper