Physics: Post your doubts here!

[janedoe]

yes provided that your paper 4 is a high A to make up for paper 5.

Ok, thank you so much for your time.

 

[Tobaaaaay]

any predictions for Q1 paper 51?

 

[angryrider_56]

guys in the doppler effect question.....i used - instead of + (automatically meaning my final answer and the next part of the questions are wrong) so total of 5...how many marks will i lose? And one more doubt, i didnt round my values (because i solved fm18 yesterday and the ms accepted unrounded answers) so is it fine?

 

[A*****]

guys in the doppler effect question.....i used - instead of + (automatically meaning my final answer and the next part of the questions are wrong) so total of 5...how many marks will i lose? And one more doubt, i didnt round my values (because i solved fm18 yesterday and the ms accepted unrounded answers) so is it fine?

If you have written the formula, then a mark will be awarded but I don't know about the remaining ones...and was it linked to any further part? I don't think so
They accept answers having the same no. of significant figures or 1 more than that...otherwise the A1 mark is lost

 

[Tauqir_hamed]

I got the pd across the 15 ohms resistor wrond and thus, got my reistance also wrong.. but the method i have followed is correct. How much do u think i will get out of 3 ?

 

[Mts.99]

what was the frequency and time in the wave question?

 

[angryrider_56]

If you have written the formula, then a mark will be awarded but I don't know about the remaining ones...and was it linked to any further part? I don't think so
They accept answers having the same no. of significant figures or 1 more than that...otherwise the A1 mark is lost

no there was a further question which was theoretical
and the answer was frequency decreases (ofc i did the opposite cuz of my answer)

 

[angryrider_56]

what was the frequency and time in the wave question?

1888.8 and the time was either 6, 9, or 12 (ppl are arguing over it)

 

[anastasia grey113]

guys what did you get for the last part of question 2? i got 100 something

lol 39000
everyone got almost this value
u did change the gradient to 10^-3 right?

 

[A*****]

no there was a further question which was theoretical
and the answer was frequency decreases (ofc i did the opposite cuz of my answer)

Oh I remember now...unfortunately we don't get an ecf for theoretical qs

 

[A*****]

1888.8 and the time was either 6, 9, or 12 (ppl are arguing over it)

Time was 12

 

[Kanekii]

What was the angle of momentum question, i got 60 something and what about the question about What type of energy Y gained

 

[Tauqir_hamed]

What was the angle of momentum question, i got 60 something and what about the question about What type of energy Y gained

61 degrees.. Kinetic energy gained
how did you all find this paper? I found it pretty tough compared to a few other papers.. but i think my score will just touch 50
also, could someone please please tell me whether this is the correct way to calculate our final grade or not :
MCQ score + p2 score + p3 * 0.75 + p4 + p5 .. lets say that the threshold says that 200 is required for A*,, now if all of these scores add up to , say , 201.. it will be an A* right? lol I am just a bit confused because I saw someone comment that " a total score of 218 might just touch A * " in a thread

 

[Kanekii]

61 degrees.. Kinetic energy gained
how did you all find this paper? I found it pretty tough compared to a few other papers.. but i think my score will just touch 50
also, could someone please please tell me whether this is the correct way to calculate our final grade or not :
MCQ score + p2 score + p3 * 0.75 + p4 + p5 .. lets say that the threshold says that 200 is required for A*,, now if all of these scores add up to , say , 201.. it will be an A* right? lol I am just a bit confused because I saw someone comment that " a total score of 218 might just touch A * " in a thread

Oh yeah it was 61 i remember now and yeah it was sort of tough

 

[A*****]

These are the right angles except for definition of wavelength and antinode
And the angle was 6.7
Also Not sure if the frictional force is correct

 

[A*****]

Can anybody remember in the question which asked about the two possible properties of Z, was same length mentioned or not?

 

[Mts.99]

in P5 q2, gradient was -C ln(1-E/V) ryt?

 

[Mts.99]

lol 39000
everyone got almost this value
u did change the gradient to 10^-3 right?

i got 64000

 

[Pravin Hapugaswatta]

Men

Can anybody remember in the question which asked about the two possible properties of Z, was same length mentioned or not?

Tioned

 

[anastasia grey113]

i got 64000

yh one of my friends got exactly this
wut was ur gradient?