Post all of ur doubts here Mishi :)

[mehria]

Mashal zeb

 

[Thought blocker]

Mashal zeb

??? What is this thread for ?

 

[mehria]

??? What is this thread for ?

it is for my frnd... she is new here n she wants to discuss her problms so i made ths thread for her

 

[Thought blocker]

it is for my frnd... she is new here n she wants to discuss her problms so i made ths thread for her

Learner

 

[mehria]

Learner

 

[Mashal zeb]

Hahahaha lol thank u so much! Now i vl eat ur brains

 

[mehria]

Hahahaha lol thank u so much! Now i vl eat ur brains

it's ok i cn sacrifice that for my frnds

 

[Thought blocker]

Hahahaha lol thank u so much! Now i vl eat ur brains

Then be ready, we will train your brain. Times starts now! ;D

 

[mehria]

Then be ready, we will train your brain. Times starts now! ;D

it has already started

 

[Thought blocker]

it has already started

Learner, okay.

 

[mehria]

Learner, okay.

 

[mehria]

Mashal zeb kdhr hai tmhare doubts bdtameex??? m waitng frm so long k AAP kb hazir hongi yaha..

 

[Mashal zeb]

Hahaha ok here comes da 1st one

 

[Mashal zeb]

Q1 b part

 

[Mashal zeb]

Ye b

 

[mehria]

Q1 b part

solve it the way we used to find the error by using fractional error calculations....
first find the density i.e. density=mass/volume
here mass is given n Vol is l^3 so density=580/(6)^3
density= 2.68 g/cm^3

NOW => %uncertainity in density=%uncertainity in mass + %uncertainity in Volume
(d/D) x 100 = ((m/M) + 3(l/L)) x 100
100d/2.68 = ((10/580) + 3(0.1/6)) x 100
100d/2.68 = 6.72
100d = 6.72 x 2.68 => d= 18.00/100 => d=0.18 g/cm^3 <------ ths is the uncertainity in density
always write the value n its uncertainity with the same no. of sig.fg
here 2 s.f. is used as the lowest value given to us is of 2s.f. i.e. 10 n 0.1
so write the density n it's uncertainity to 2 s.f. otherwise u'll lose 1 mark....

 

[mehria]

View attachment 40241 Ye b

yr where is part b.... wo expression chahye mjy

 

[Mashal zeb]

Acha part b me post kardungi or wo sab se pehle walde question me akhri part ki mujy samaj nhi aye

 

[Mashal zeb]

Ye hai us ka part a nd b

 

[Mashal zeb]

Hadia is que me mujy bi samaj nhi aya k A pe current q zero hai or ciii part samaj nhi aya :-/