Biology; Chemistry; Physics: Post your doubts here!

[Awesome12]

Sometimes, all the points don't come in that flow. If we pass through all of them, it gets distorted and doesn't look smooth.
They ask for a smooth best fit curve

 

[asadalam]

But some of the points are not in the same flow, don't we have to ignore those?

Yes we do but Awesome12 s graph was correct as well as it was smooth and it didnt pass through all i think,to maintain the shape.And i guess we have to make the curve of best fit if it appears that way because we never just join the dots funky brat .

 

[kirann]

part b from above snap

part c(ii) from above snap
5054_w10_qp_41.pdf

 

[Awesome12]

View attachment 41023

part b from above snap
View attachment 41024
part c(ii) from above snap
5054_w10_qp_41.pdf

For the first one look at
Oct/Nov 2004 p4 q2 at fig. 2.1 thr fig on thr right side is the apparatus
About the secomd one, whre is the graph?

 

[kirann]

 

[kirann]

For the first one look at
Oct/Nov 2004 p4 q2 at fig. 2.1 thr fig on thr right side is the apparatus
About the secomd one, whre is the graph?

how should i post the graph

 

[kirann]

confused b/w part b and c...

 

[kirann]

how should i set up an investigation in part a of this question

 

[Awesome12]

3 (a) ii
Does the focal length remain cinstant and if it does, then why doesnt it say so in the ms

 

[asadalam]

View attachment 41029
how should i set up an investigation in part a of this question

You should only use the newton meter and attach it to the hook of the block.The student should slowly pull and apply force to the newton meter to pull the block.Stop when the block just moves slightly and note the force.That is the force needed to move the block.

View attachment 41026


View attachment 41027

confused b/w part b and c...

b)We can shine the ray box on the block and keep on increasing the angle of incidence till it emerges out of the bottom surface of the block,where we can place a screen to note that the ray is parallel to the bottom surface.
c)here you can see that the ray is not striking perpendicular to the glass block so there will be another refraction on the entry to the block that will make the results harder to conclude.

View attachment 41023

part b from above snap
View attachment 41024
part c(ii) from above snap
5054_w10_qp_41.pdf

b)Here we can immerse the thermistor in an oil or water bath and heat it gently up to 90.We can use a stirrer to uniformly distribute the heat and place a thermometer close to thermistor to get accurate results of its temperature.
c)ii)Mass is hung 95 cm mark on the rule and the edge of the bench is at 10 cm mark on rule so distance is 95-10=85.

 

[FLRNAB]

Who's the father? Chem

But who's the father?

I'm not even going to ever touch a Maths book once I'm done with O'levels. I hate it no matter what. Worst subject.

Maths is father*
and my teacher says,
"jographee, is the mother uf, aal subjects"

------------------------------------------
Law of Electrostatics:
1) Like charges repel
2) Unlike charges attract

Observation:
Maths is mother = Female
funky brat is a Female

Funky repels/hates math aka Like Gender repels.

Deduction:
Maths is mother.
------------------------------------------
Father might be Geography
Math (Magnitude) + Geography (Direction) = Physics(Vector Quantity)

 

[funky brat]

------------------------------------------
Law of Electrostatics:
1) Like charges repel
2) Unlike charges attract

Observation:
Maths is mother = Female
funky brat is a Female

Funky repels/hates math aka Like Gender repels.

Deduction:
Maths is mother.
------------------------------------------
Father might be Geography
Math (Magnitude) + Geography (Direction) = Physics(Vector Quantity)

Too much Physics.

 

[FLRNAB]

Too much Physics.

ATP jo itna kareeb hai.

 

[funky brat]

'use a fiducial aid when measuring a length', what does this mean?

 

[funky brat]

ATP jo itna kareeb hai.

What's your average score in ATP?

 

[Faizan Muhammmad]

Damn
missed the alert again and you have written pages upon pages

 

[exploded diper]

..p.s what is the hanger for......i saw in one a pulley was attached with a weight from one side and the newton meter from the other which was attached to the block the string from pulley passing through a hanger.......

You should only use the newton meter and attach it to the hook of the block.The student should slowly pull and apply force to the newton meter to pull the block.Stop when the block just moves slightly and note the force.That is the force needed to move the block.
we could also use the pulley right?

 

[FLRNAB]

What's your average score in ATP?

25-27

'use a fiducial aid when measuring a length', what does this mean?

https://www.xtremepapers.com/community/threads/what-is-a-fiducial-aid-physics.23512/#post-455331

 

[ciesgetoveralready]

Hello everyone! Just joined this forum. So nice of you all to help each other. May Allah bless you all and give you all success. I just wanted to know how are you all preparing for the atps? If you have any tips, please share them with me. I will be very grateful to you all. Thankyou

 

[Anonymous321]

Hey guys, the syllabus states we have to
''*draw scale diagrams to determine the focal length needed for
particular values of magnification (converging lens only).''

Could someone tell me how this is done?