Biology; Chemistry; Physics: Post your doubts here!

[Faizan Muhammmad]

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

doing papers
finding problems then discussing them
but first come the book and formulae

 

[ciesgetoveralready]

doing papers
finding problems then discussing them
but first come the book and formulae

How many papers have you planned to do and how many have you done so far? Also are you doing the recent ones mainly or going back?

 

[Anonymous321]

Guys answer my question maybe?

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?

 

[Faizan Muhammmad]

How many papers have you planned to do and how many have you done so far? Also are you doing the recent ones mainly or going back?

going back
as much as possible

 

[ciesgetoveralready]

Guys answer my question maybe?

Do you know those six or seven diagrams in the book ? You should be able to draw them. I think this is what it means but lets wait for more people

 

[Faizan Muhammmad]

Guys answer my question maybe?

well if the lengths are like 50cm focal length ,75 cm object distance
you scale it in diagram to 5cm and 7.5 cm

 

[funky brat]

25-27


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

The paper you find the most tough out of them?

 

[Uchiha-Sasuke]

http://maxpapers.com/wp-content/uploads/2012/11/5054_w08_qp_4.pdf
Q3b
I get the /8 part but not the reading.
thanks in advance

 

[funky brat]

http://maxpapers.com/wp-content/uploads/2012/11/5054_w08_qp_4.pdf
Q3b
I get the /8 part but not the reading.
thanks in advance

Do it practically, you'll get that.
Take a paper fold it thrice, count the layers then divide the thickness shown by number of layers.

 

[Uchiha-Sasuke]

Do it practically, you'll get that.
Take a paper fold it thrice, count the layers then divide the thickness shown by number of layers.

thats the only part I understood lol
but what I dont get is the reading itself. my MSR is 1.5 mm CSR is 0.28 mm. TR becomes 1.78 but the TR itself is incorrect .. how?

 

[Awesome12]

thats the only part I understood lol
but what I dont get is the reading itself. my MSR is 1.5 mm CSR is 0.28 mm. TR becomes 1.78 but the TR itself is incorrect .. how?

MSR is 1.0 cuz each division on the MSR is 0.5

 

[funky brat]

thats the only part I understood lol
but what I dont get is the reading itself. my MSR is 1.5 mm CSR is 0.28 mm. TR becomes 1.78 but the TR itself is incorrect .. how?

According to mark scheme the reading on MS shloud be 1, but isn't it 1.5?

 

[Maganius]

According to mark scheme the reading on MS shloud be 1, but isn't it 1.5?

It's 1

o then o.5 then 1

 

[funky brat]

I

MSR is 1.0 cuz each division on the MSR is 0.5

Is it true, always? Like on every screw gauge MS readings are 0.5mm divisions?

 

[Awesome12]

According to mark scheme the reading on MS shloud be 1, but isn't it 1.5?

No it isnt

I

Is it true, always? Like on every screw gauge MS readings are 0.5mm divisions?

Yes unless stated

 

[funky brat]

No it isnt

Yes unless stated

Stated what?

 

[Dark Destination]

What is a capacitor?

 

[Maganius]

What is a capacitor?

Capacitors are one of the primary electrical components, acting as stores of charge in circuits. Capacitance is measured in Farads, or more usefully, microfarads.

 

[Uchiha-Sasuke]

What is a capacitor?

device that stores electrical energy. when connected to a source , it charges up to the max voltage of source . Voltage increases at a decreasing rate (during charging) and decreases at a decreasing rate (during discharging)

Stated what?

maybe something like : each division is 0.1
or when the numbers are written on MSR

 

[FLRNAB]

The paper you find the most tough out of them?

Will tell you when I have done them all.