physics paper 1,2 ........can we discuus da papper nw?

[Doosh Bag]

Yaar how did we keep temp of wire constant in P2 ?

 

[waztaz123]

And what was Distance D in wave question?

I did it about 2 wavelength.

 

[waztaz123]

guys can u please tell me what did u mark for the length of wave in one second? and which direction did u show the X moving?

I think we had to show it to the bottom....but I showed it towards the right...so I got it wrong.

 

[ashiqbal]

I did it about 2 wavelength.

ok! you mean that you drew from X to the crest of the second wave after that?

 

[ashiqbal]

I think we had to show it to the bottom....but I showed it towards the right...so I got it wrong.

i showed it moving up! !

 

[Abdul345]

I have a question...I attempted section 2 ques. 2 but then it felt as if it was hard so I changed my choice and did the third...I crossed Q.2 and wrote "Question not attempted. Please check the next question" do you think it will work?

 

[ashiqbal]

I have a question...I attempted section 2 ques. 2 but then it felt as if it was hard so I changed my choice and did the third...I crossed Q.2 and wrote "Question not attempted. Please check the next question" do you think it will work?

yes! examiners are human beings! they understand

 

[Abdul345]

hmm...hahahaha...hope so

 

[waztaz123]

ok! you mean that you drew from X to the crest of the second wave after that?

Yes! Is it right?

 

[snowbrood]

what was the answer of mcq.3. was magnetic field towards the top of the page? was the moment of dc clockwise??

 

[Fallen316]

guys can u please tell me what did u mark for the length of wave in one second? and which direction did u show the X moving?

what i marked was from the point X to the next two peaks.
direction was downwards.

 

[Fallen316]

what was the answer of mcq.3. was magnetic field towards the top of the page? was the moment of dc clockwise??

mcq 3 : B
magnetic field towards the bottom of the page
it would rotate clockwise.

 

[snowbrood]

What is meant by wave motion?
In the last question sec B....only alpha and gamma existed, right?

only gamma existed

 

[snowbrood]

mcq 3 : B
magnetic field towards the bottom of the page
it would rotate clockwise.

was B the one with the highest speed

 

[Fallen316]

was B the one with the highest speed

yes, the top point on the graph.

 

[bikermicefrmars]

Nah man ... you're wrong there... alpha surely existed since there was a marked decrease with an inclusion of paper as a barrier which suggested that alpha was stopped by it...?

And what about wave motion guys?

Especially Fallen316

 

[Fallen316]

What is meant by wave motion?
In the last question sec B....only alpha and gamma existed, right?

only gamma existed

- wave is a phenomena of transfer of energy from one point to another in form of vibrations
- alpha and gamma existed. beta did not

 

[Translucent231]

i
it was 2p
pressure remain same in all the vessel...... p1*v1=p2*v2
200*p=x*100 solve it we will get the 2p has a result

It was not 2p... first thing.. when you increase volume PRESSURE REDUCES , IT CAN NOT BE DOUBLED..
the mistake which most of you guys made was that u took second volume to be 100.. its NOT 100 its 300.. The 200 cm of the first tank and the 100 cm of the second tank.. the gass willl be spread in the 300 volume therefore
200p1 = 300p2
p2 = 200/300p1
p2 = 2/3p

 

[bikermicefrmars]

And how much did we have to write in description of alpha and gamma particle?

 

[Fallen316]

It was not 2p... first thing.. when you increase volume PRESSURE REDUCES , IT CAN NOT BE DOUBLED..
the mistake which most of you guys made was that u took second volume to be 100.. its NOT 100 its 300.. The 200 cm of the first tank and the 100 cm of the second tank.. the gass willl be spread in the 300 volume therefore
200p1 = 300p2
p2 = 200/300p1
p2 = 2/3p

eh ?
the answer was 2P/3.