Physics P-22 GT.

[ZeroNyx97]

it was hard q1 and 2 was okay but then i'm not sure about the rest LOL

 

[JoBy1NoBa]

Can anyone tell me how many marks they will take off if I counted the number of wavelength wrongly (+.5) and carried on using it for the next questions?
The question has 2 marks for the +.5 thing and the next one has 3 marks.

 

[Princess Raven]

Can anyone tell me how many marks they will take off if I counted the number of wavelength wrongly (+.5) and carried on using it for the next questions?
The question has 2 marks for the +.5 thing and the next one has 3 marks.

V21 or 22? And I'm sure there will be ecf so most probably if ur method for the second part is correct u will get all 3 marks but loose 2 for incorrectly counting the wavelength

 

[JoBy1NoBa]

As the thread title mentioned, P22. I thought I could at least get 1 mark for getting the number of wavelength and do the calculation correctly. Anyway, thank you!

 

[Snowysangel]

When do they ever ask us to calculate the NUMBER of wavelengths? That statement in itself doesn't make sebse :S

 

[Princess Raven]

As the thread title mentioned, P22. I thought I could at least get 1 mark for getting the number of wavelength and do the calculation correctly. Anyway, thank you!

Dude I did 22 and there was no such question like that

 

[Fahm Deen]

What is the threshold for A*...as in is it like (gt for A+ difference between gt a and gt of b)?

 

[SomeStudent]

What is the threshold for A*...as in is it like (gt for A+ difference between gt a and gt of b)?

yes, some one please tell how much we need to score for an A*?

 

[SyedAhmad3020]

I prepared for the Difficult and it was dayum too easy, so I was Trolled BY Cambridge and s messed things up quite badly! But IA I ll still be lying in the appropriate range

 

[IndianMan]

Guys we had to calculate the slit separation so we have to count the no. of wavelengths because in lamda = ax/D, the x is fringe separation...I did it but cancelled it coz it was written not to scale on the diagram....

 

[IndianMan]

Guys we had to calculate the slit separation so we have to count the no. of wavelengths because in lamda = ax/D, the x is fringe separation...I did it but cancelled it coz it was written not to scale on the diagram....

 

[JoBy1NoBa]

Dude I did 22 and there was no such question like that

Ah true, I just realised its 21

 

[Princess Raven]

Guys we had to calculate the slit separation so we have to count the no. of wavelengths because in lamda = ax/D, the x is fringe separation...I did it but cancelled it coz it was written not to scale on the diagram....

Why did u cancel it!! What u did was correct

 

[Princess Raven]

Guys what was the answer to the ratio question the first was 4:1 what was the second

 

[xtremeuser12345]

Guys what was the answer to the ratio question the first was 4:1 what was the second

2:1 tho not entirely sure

 

[Snowysangel]

Did the potential difference increase as the resistance increased in that resistance current graph q

 

[xtremeuser12345]

Did the potential difference increase as the resistance increased in that resistance current graph q

i think increases the p.d cuz the current decreases but i dont remember

 

[zaidwaseem]

Can anyone tell me how many marks they will take off if I counted the number of wavelength wrongly (+.5) and carried on using it for the next questions?
The question has 2 marks for the +.5 thing and the next one has 3 marks.

ecf will save you brother

 

[xtremeuser12345]

does anyone remember their answers? the 2nd question about the coin and electricity +waves?

 

[zaidwaseem]

Did the potential difference increase as the resistance increased in that resistance current graph q

Guys we had to calculate the slit separation so we have to count the no. of wavelengths because in lamda = ax/D, the x is fringe separation...I did it but cancelled it coz it was written not to scale on the diagram....

you just had to divide the fringes total distance by number of fringes.. youll get x... then use the formula lambda=ax/d I guess thats how it was supposed to be done