Physics: Post your doubts here!

[MelvinW]

Btw guys....what were ur answers for gradient and Y-intercept? (i got gradient as 0.7 while my classmates got it as 0.5 and I got my Y-intercept to be 0.06 by using the formula and not the graph, hopefully, that's fine). And for your K question...i got 7.8% meaning they are related, right? and for improvement, one of my points were "2 values of K aren't enough to make a valid conclusion " and improvement was " take more than 2 values and plot a graph". Are my answers fine?

0.7 is a bit high....

 

[angryrider_56]

0.7 is a bit high....

damn it.....what was urs tho?

 

[angryrider_56]

0.7 is a bit high....

if u also say 0.5 am going to cry...

 

[MelvinW]

damn it.....what was urs tho?

Well minus the part where i divide my values by 5.6x10^-3 (my value (also i used cm)) i got 0.42

 

[A*****]

the question asked about percentage uncertainty not absolute...my answer was exactly 5%. BTW guys is it fine if i have spelling mistakes in my errors and improvements?

I'm asking for the absolute uncertainty to get an idea of the %age uncertainty bqz that depends on our working only if the a.u is correct...I took it as 3°, divided by 12 x 100= 25%

 

[Tauqir_hamed]

I took (2 / 13) * 100

 

[Tauqir_hamed]

Also, the questions where they said measure the length.. i wrote in the line ( 40 cm = 0.400 m ) is it fine

 

[A*****]

Well minus the part where i divide my values by 5.6x10^-3 (my value (also i used cm)) i got 0.42

I used cm but got a gradient above 80...the x axis values were very low that's why maybe

 

[A*****]

I took (2 / 13) * 100

Is 3° fine instead of 2?

 

[A*****]

Also, the questions where they said measure the length.. i wrote in the line ( 40 cm = 0.400 m ) is it fine

Yes

 

[Tauqir_hamed]

Is 3° fine instead of 2?

I guess so
In the error and improvement part, is writing " large uncertainty in the value of A " as an error and " use a thinner string " as improvement correct ?

 

[A*****]

I guess so
In the error and improvement part, is writing " large uncertainty in the value of A " as an error and " use a thinner string " as improvement correct ?

Yes correct

 

[Tauqir_hamed]

I got my gradient as 0.652 and y intercept as - 0.165

 

[angryrider_56]

Is 3° fine instead of 2?

i took my uncertainty for the protractor to be 0.5degrees (the school supplied us with a really big compass) so i took 0.5*14.5(my A) and then ANS/14.5 x 100 and got 5%

 

[angryrider_56]

Well minus the part where i divide my values by 5.6x10^-3 (my value (also i used cm)) i got 0.42

hope the difference between my answer and urs is because of differences in our circuits :'( cuz my classmates too got 0.5-0.6ish idk about my teacher

 

[FairyTail]

Yea even I sued 5%

 

[FairyTail]

Anyone knows material for paper 22 biology

 

[angryrider_56]

angryrider_56 man, thank you so much for telling us that oscillaions and electricity would be coming.. do you have any idea about chem 33 ?

No problem fam, and unfortunately no idea about chem cuz i dropped it, plus our variant is 34 for chem anyways :/

 

[A*****]

Anyone knows material for paper 22 biology

https://www.xtremepapers.com/community/attachments/03_9700_22_3rp_afp-pdf.63551/
Here is the m18 paper

 

[Psyvlone007]

Guys I sat for phy p33 today and unconciously I made a blunder . i didnt read the Q2 properly about that angle must be approx 14 and wrote 9° and carried Out my further calculations but my readings for Time were almost similar to others who had done it right.So are there any chances of ECF or how many Marks Would I lose ? Furthermore i think that T was not for a single oscillation because it stated That T is the time gor Number of oscillations You take , so anyone could help me out with those these issues. would Be very grateful.