Physics, Chemistry and Biology: Post your doubts here!

[tata99]

My brother didn't shade his candidate number on the MCQ answer sheet. He gave his exam in a Lahore center and his invigilator didn't tell him to fill in his candidate number, and he didn't think that it was necessary either as his details were already printed on the sheet. Has anyone else had the same problem before and what should we do now?

 

[Osman Kaleem]

Many of us tried this ques but didn't get 720, so we stick to our own method
besides the subtraction for the upper part part of this ques is clearly wrong in the ms

the answer is right as make it compulsory in the new papers all answers need to be writtenin 2 significant figures

 

[Muzammil ahmad]

My brother didn't shade his candidate number on the MCQ answer sheet. He gave his exam in a Lahore center and his invigilator didn't tell him to fill in his candidate number, and he didn't think that it was necessary either as his details were already printed on the sheet. Has anyone else had the same problem before and what should we do now?

You asked the same question on expo right ?
XD

 

[Ayesha Asif333]

the answer is right as make it compulsory in the new papers all answers need to be writtenin 2 significant figures

Won't that affect the accuracy of the values ..anyways thnx for informing
Hopefully they won't cut marks for not rounding off.right?

 

[Ayesha Asif333]

Guys,have u solved paper of 2017 feb march?

Got no time
Wbu?

 

[Osman Kaleem]

Won't that affect the accuracy of the values ..anyways thnx for informing
Hopefully they won't cut marks for not rounding off.right?

but use the value of worked answer if u wanna use it in the next part

 

[Adeen Atif]

Got no time
Wbu?

Yeah i did them and to be honest Paper 42 was kinda hard.
I would recommend you to solve them

 

[Muzammil ahmad]

Can you send the link plz ^

 

[Adeen Atif]

Can you send the link plz ^

Its paid actually,
https://www.stuvia.com/doc/326897/igcse-physics-0625-2017-febmarch-paper-42-extended

 

[Aayan Muttaqi]

Apparently , the HARDEST question to ever come in IGCSE physics according to my teacher. 100% of students have failed to solve this question.

 

[Adeen Atif]

View attachment 62225 Apparently , the HARDEST question to ever come in IGCSE physics according to my teacher. 100% of students have failed to solve this question.

Part(i)- The denser liquid (0.83 g/cm^3) will sink to the bottom and the less denser will be above
Part (ii) Im not sure actually,But is the answer 10800J?
Part (iii) This question doesn,t even make sense!

 

[Aayan Muttaqi]

Part(i)- The denser liquid (0.83 g/cm^3) will sink to the bottom and the less denser will be above
Part (ii) Im not sure actually,But is the answer 10800J?
Part (iii) This question doesn,t even make sense!

Your part (ii) is so wrong , it makes me want kill myself. Just kidding , no offense.
Wait, I will send in the solution. Extremely complicated question just for 4 marks.
BTW where are you going to sit for the exam? Ibn Khaldun?

 

[Aayan Muttaqi]

4 marks.

 

[Adeen Atif]

Your part (ii) is so wrong , it makes me want kill myself. Just kidding , no offense./QUOTE]

That wasnt even a bit offensive *note sarcasm*

Wait, I will send in the solution. Extremely complicated question just for 4 marks.\

Ok thanks

BTW where are you going to sit for the exam? Ibn Khaldun?

Yeah, It means you,re from Riyadh too right?

 

[Adeen Atif]

4 marks.

Thanks!
I thought I was the only night owl here,Looks like Im not alone

 

[Aayan Muttaqi]

Yes.
Why am I not in bed?
Goodbye and good luck .

 

[Adeen Atif]

Yes.
Why am I not in bed?
Goodbye and good luck .

Haha, Goodluck to you too!

 

[Adeen Atif]

Can you send the link plz ^

Here you go!

 

[Ayesha Asif333]

Yeah i did them and to be honest Paper 42 was kinda hard.

View attachment 62225 Apparently , the HARDEST question to ever come in IGCSE physics according to my teacher. 100% of students have failed to solve this question.

Thank you both so much for adding to my stress!!

 

[Ayesha Asif333]

but use the value of worked answer if u wanna use it in the next part

yes, y waste ure time rounding off ..its useless