Edexcel IAL Physics Unit 2 - 17th May 2019
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Original post by Luciferrr
IT WAS TERRIBLE! I feel I'm failing.
I failed it in Jan.. so it's fine 😭😂😂
This one was like 1000x harder than Jan paper tbh.
I wonder which smartass thought of such paper.
I wonder which smartass thought of such paper.
Original post by ameer10
I failed it in Jan.. so it's fine 😭😂😂
Mm for V=IR which value of R should i use? 🙈
Original post by ameer10
C
you need to find the total current in the circuit which is EMF/total resistance.
To find total resistance, you should apply 1/6 + 1/6 and reciprocate it and multiply by 1000.
Then add the other 3000 resistance so I = 12/9000.
Use the current and apply V=IR
you need to find the total current in the circuit which is EMF/total resistance.
To find total resistance, you should apply 1/6 + 1/6 and reciprocate it and multiply by 1000.
Then add the other 3000 resistance so I = 12/9000.
Use the current and apply V=IR
Original post by dsn_o_u_r_e_e_n
Mm for V=IR which value of R should i use? 🙈
3000ohm because you want to find V across it
Original post by Luciferrr
This one was like 1000x harder than Jan paper tbh.
I wonder which smartass thought of such paper.
I wonder which smartass thought of such paper.
Really? Edexcel should really get a grip and make an easy paper for October
Fr. All the best!
Original post by ameer10
Really? Edexcel should really get a grip and make an easy paper for October
Original post by Luciferrr
Fr. All the best!
You too! 😊
You Are My Saviour!🏆
Original post by ameer10
3000ohm because you want to find V across it
Which & why?
Original post by dsn_o_u_r_e_e_n
Which & why?
Which & why?
C.
Because they are asking at the fundamental frequency so there are 2 antionodes on the ends and one node in the middle.
the distance between 2 antinodes is y/2.
so L=y/2 .. rearrange it gives 2L = y (y is lambda btw)
How do I know its fundamental?
Original post by ameer10
C.
Because they are asking at the fundamental frequency so there are 2 antionodes on the ends and one node in the middle.
the distance between 2 antinodes is y/2.
so L=y/2 .. rearrange it gives 2L = y (y is lambda btw)
Because they are asking at the fundamental frequency so there are 2 antionodes on the ends and one node in the middle.
the distance between 2 antinodes is y/2.
so L=y/2 .. rearrange it gives 2L = y (y is lambda btw)
Original post by dsn_o_u_r_e_e_n
How do I know its fundamental?
They mentioned in the question. Lowest possible frequency of standing waves
Mm so if lowest frequency means fundamental, then what are other things that mean like these. Did you get my question? Umm I meant what are the other words for frequency for which I'd understand the related meanings to find out lambda and can find out the length
Original post by ameer10
They mentioned in the question. Lowest possible frequency of standing waves
Isn't this Doppler Effect?
Original post by dsn_o_u_r_e_e_n
Isn't this Doppler Effect?
Isn't this Doppler Effect?
Anything which has to do with an observer and frequency changing it is Doppler effect
What is the time now in your country?🤔
Original post by ameer10
Anything which has to do with an observer and frequency changing it is Doppler effect
Original post by dsn_o_u_r_e_e_n
What is the time now in your country?🤔
10:59 PM
you?
2.07 am btw I'm from Bangladesh 😁
Original post by ameer10
10:59 PM
you?
you?
15579521704476314681273992008484.jpg
Why and what?
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