HOW WAS PHYSICS PAPER 2 AS!!!!!!!!!!!

[Saad Sarfraz]

well,to solve the mystery of frequency...i have a question?


in the Question did they mention that it is a stationary wave or they just said that its a PART of wave??? Any one who remember???

i think nodes etc can be on the progressive wave as well....

What u think is wrong go check the book and plus the question was all about stationery waves r u kinda like blind? both the part a and b were of S.W wasn't it obvious the next would be also

 

[Assad Ali]

Hi.
No man. What is power input then? Just answer me this. Youre not distinguishing between power input and power output. They would've never given constant velocity or constant resistive force if they didn't want to test your reasoning on this concept. Your calculation is correct. Concept? not so much. But what's done is done. So just pray.

I think you are righ.I had both answers in my mind but I went with the wrong one.I will for sure appreciate if you help me with one question.Will e.c.f be considered in this paper?And did your paper went really awsome so that I may consider asking you some doubts I have.

 

[Saad Sarfraz]

Hi.
No man. What is power input then? Just answer me this. Youre not distinguishing between power input and power output. They would've never given constant velocity or constant resistive force if they didn't want to test your reasoning on this concept. Your calculation is correct. Concept? not so much. But what's done is done. So just pray.

Okay so dudette thing is i went with the same answer as yours hope we get it right inshAllah. But i asked my sir he said the ans could go anyway since he didnt specifically mentioned usefull power output plus he said since he didn't see the question by himself its hard to judge what the examiner was really asking. I went with yes caz that was the trick u wont find an easy question especially of reasoning in an AS PHYSICS paper. Plus to me it looked so obviouslly Effective power output just by the way he presented the question i think

 

[rabiafarooq101]

I think you are righ.I had both answers in my mind but I went with the wrong one.I will for sure appreciate if you help me with one question.Will e.c.f be considered in this paper?And did your paper went really awsome so that I may consider asking you some doubts I have.

Yeah sure. It didn't go awesome but it was generally good. Ask away.

 

[Saad Sarfraz]

***

Lugar no use of bad language ull get blocked and plus check out my post on page 17. Level explaination of stationary wave question

 

[Assad Ali]

Lugar no use of bad language ull get blocked and plus check out my post on page 17. Level explaination of stationary wave question

I ain't abusing you man.Its just expressing love...lolz...yeah I read every comment.I appreciate that.

 

[Assad Ali]

Okay so dudette thing is i went with the same answer as yours hope we get it right inshAllah. But i asked my sir he said the ans could go anyway since he didnt specifically mentioned usefull power output plus he said since he didn't see the question by himself its hard to judge what the examiner was really asking. I went with yes caz that was the trick u wont find an easy question especially of reasoning in an AS PHYSICS paper. Plus to me it looked so obviouslly Effective power output just by the way he presented the question i think

yeah man.This guy is really nice.His knowledge extends beyond ones imagination.Even teachers are somtimes puzzled by his questions.Beleive him.I trust him too.

 

[Saad Sarfraz]

I ain't abusing you man.Its just expressing love...lolz...yeah I read every comment.I appreciate that.

Hahaha. One benefit of getting that wrong. I guess will never get it wrong in my whole life

 

[Assad Ali]

Hahaha. One benefit of getting that wrong. I guess will never get it wrong in my whole life

lolz...What does that imply!that will we be tested with that concept again

 

[Saad Sarfraz]

lolz...What does that imply!that will we be tested with that concept again

Hopefully!

 

[WhereAmazingHappens]

Force was on the y axis. Please stop this lame argument and open your damn books for a change. Force versus extension graph is also given in some textbooks.

oh yeah? must be in a text book you wrote.
Check wikipedia and everything else that matters

Everytime in Young Modulus question it is extension against force

 

[m.r92]

extension was in x axis in mm in the question

 

[BILALrox01]

Yes, that's right. The highest points were the antinodes. I just don't exactly remember the distance between successive ones. :/

well i took nodes nd as there were 3 nodes shown on the wave i took the whole length

 

[BILALrox01]

Yes, that's right. The highest points were the antinodes. I just don't exactly remember the distance between successive ones. :/

the distance between two max points was actually o.34. nw do u get it?

 

[rabiafarooq101]

oh yeah? must be in a text book you wrote.
Check wikipedia and everything else that matters

Everytime in Young Modulus question it is extension against force

Oh dear sonny boy, the graph of force against extension is drawn in their course approved books. So YOU read things which matter. Wikipedia doesn't get you A's son.

 

[WhereAmazingHappens]

Oh dear sonny boy, the graph of force against extension is drawn in their course approved books. So YOU read things which matter. Wikipedia doesn't get you A's son.

How can force against extension be a proper graph.
Force is an independant variable and Extension is dependant variable

You swallow everything which is told to you without attempting to understand the concepts behind it.

 

[rabiafarooq101]

How can force against extension be a proper graph.
Force is an independant variable and Extension is dependant variable

You swallow everything which is told to you without attempting to understand the concepts behind it.

Dude I 100% agree with you on that concept. I'm just saying that the graph is possible. In their approved coursebooks the energy stored in the string is calculated by finding the area under the FORCE-EXTENSION GRAPH i.e. Force on the y axis and extension on the x axis. So the question was technically correct because it is in their coursebooks. It's better to open the course books rather than to argue.

 

[rabiafarooq101]

How can force against extension be a proper graph.
Force is an independant variable and Extension is dependant variable

You swallow everything which is told to you without attempting to understand the concepts behind it.

http://spaceflight.esa.int/impress/text/education/Mechanical Properties/index.html
Check out this link and then apologise.

 

[good man12]

Hi.
No man. What is power input then? Just answer me this. Youre not distinguishing between power input and power output. They would've never given constant velocity or constant resistive force if they didn't want to test your reasoning on this concept. Your calculation is correct. Concept? not so much. But what's done is done. So just pray.

well i checked from many places on net............: the output power of a car engine doesnt refer to its useful power output, but it includes any heat , sound, and mechanical output, so im confident that my answer is correct, but i cant suppose the converse argument is wrong if you mentioned "useful" power out put ...........so i guess examiners will have to credit any statement which makes sense as far as the matter is concerned. oh well lets wait for 13th august...i hope it doesnt spoil a 60/60 !!!!!!!!

 

[rabiafarooq101]

well i checked from many places on net............: the output power of a car engine doesnt refer to its useful power output, but it includes any heat , sound, and mechanical output, so im confident that my answer is correct, but i cant suppose the converse argument is wrong if you mentioned "useful" power out put ...........so i guess examiners will have to credit any statement which makes sense as far as the matter is concerned. oh well lets wait for 13th august...i hope it doesnt spoil a 60/60 !!!!!!!!

Yes, exactly. Even I'm sure that my answer is correct. But lets just hope for the best. 60/60 it is.