How was physics 12?

[Yousuf Ykr]

It has been said that, the mechanics part of this year was one of the hardest of all time? but for myself, I have found the later part more harder.... How was it for the rest of u? which part was the most troublesome?

 

[chandradas]

i Felt that that this was relatively an easy physics paper 1..unlike may/june which was extremely though. I felt that
this time we had fewer numericals and alot of theory based questions.. And most questions required less thinking..
But it is an MCQ paper so its impossible to say if what i ticked is right or wrong.
But i did my paper 22 terribly so the mcq was just to recover my grades..to 73%-80%.
I hope all of you felt the same way and get good grades. Goood luck to all.

my doubts:
1. what is the answer for the wave question where a picture of a standing wave was given and we deciede if it is a longitudinal or transverse. ( i think i got it wrong. )
2.and alpha particles colling at a rate of "something" and what is the work done.... dont remmber exactly....

 

[Yousuf Ykr]

i Felt that that this was relatively an easy physics paper 1..unlike may/june which was extremely though. I felt that
this time we had fewer numericals and alot of theory based questions.. And most questions required less thinking..
But it is an MCQ paper so its impossible to say if what i ticked is right or wrong.
But i did my paper 22 terribly so the mcq was just to recover my grades..to 73%-80%.
I hope all of you felt the same way and get good grades. Goood luck to all.

my doubts:
1. what is the answer for the wave question where a picture of a standing wave was given and we deciede if it is a longitudinal or transverse. ( i think i got it wrong. )
2.and alpha particles colling at a rate of "something" and what is the work done.... dont remmber exactly....

i dnt remember the wave question...but i guess, we had to use the electron volt equation for the alpha question...
For me...it was overall average paper

 

[chandradas]

i dnt remember the wave question...but i guess, we had to use the electron volt equation for the alpha question...
For me...it was overall average paper

oh ok ..thnx for the reply.. Do u mind if we can discuss more questions just to make sure....Did you get 6V for finding the EMF..?

 

[Moi]

i Felt that that this was relatively an easy physics paper 1..unlike may/june which was extremely though. I felt that
this time we had fewer numericals and alot of theory based questions.. And most questions required less thinking..
But it is an MCQ paper so its impossible to say if what i ticked is right or wrong.
But i did my paper 22 terribly so the mcq was just to recover my grades..to 73%-80%.
I hope all of you felt the same way and get good grades. Goood luck to all.

my doubts:
1. what is the answer for the wave question where a picture of a standing wave was given and we deciede if it is a longitudinal or transverse. ( i think i got it wrong. )
2.and alpha particles colling at a rate of "something" and what is the work done.... dont remmber exactly....

I believe it was standing and transverse

 

[moinul]

i marked the transverse one...

 

[Yousuf Ykr]

I believe it was standing and transverse

why it would be transverse? I also gave transverse but i do not know why

 

[Yousuf Ykr]

oh ok ..thnx for the reply.. Do u mind if we can discuss more questions just to make sure....Did you get 6V for finding the EMF..?

I did not get 6.... how was other parts of electricity questions?

 

[enchanted era]

why transverse?

 

[chandradas]

I ticked longitudinal for some reason.. there were some lines between the waves so i thought it was longitudinal.
But i guess the answer must be transverse or else i dont know..........what do you guys think about it?

other parts of electricity were fine i guess..did all get average velocity as 480km/h ?( but im sure 500 is definetly
not the answer.)

 

[Abdullah Shirajee]

I ticked longitudinal for some reason.. there were some lines between the waves so i thought it was longitudinal.
But i guess the answer must be transverse or else i dont know..........what do you guys think about it?

other parts of electricity were fine i guess..did all get average velocity as 480km/h ?( but im sure 500 is definetly
not the answer.)

why 500 is not the answer, u add the 2 speeds and divide by two, thats how u find average speed and majority of students did that only

 

[chandradas]

average speed=total distance travelled/time taken... adding and dividing by two just gives you the average of those 2 values which is incorrect....."But if i am wrong i am extremely sorry".

 

[Abdullah Shirajee]

t

average speed=total distance travelled/time taken... adding and dividing by two just gives you the average of those 2 values which is incorrect....."But if i am wrong i am extremely sorry".[/quot

total distance is 2d
and they dint mention time

so how can u get 480

 

[moinul]

what was da answer of 36 no?

 

[chandradas]

so did every one pick transverse wave?...i picked longitudinal...i think i made a mistake..
so what is the correct answer and why? pls reply

 

[chandradas]

t

they dint mention time but we have to use it to find average velocity...we dont gt a value for time ..it is simple 600/d or 400/d
later on it gets canlcelled and u get the answer...

 

[moinul]

so did every one pick transverse wave?...i picked longitudinal...i think i made a mistake..
so what is the correct answer and why? pls reply

i gave stationary transverse ...

 

[chandradas]

d

i gave stationary transverse ...

what does those lines in between indicated?

 

[DumbIdiot]

so did every one pick transverse wave?...i picked longitudinal...i think i made a mistake..
so what is the correct answer and why? pls reply

well the wavelength was 40cm , right?
only one of the four options stated that the wavelength was 40cm , the others gave the wavelength as 20cm.

 

[chandradas]

w

well the wavelength was 40cm , right?
only one of the four options stated that the wavelength was 40cm , the others gave the wavelength as 20cm.

at i misunderstood was that for a standing "longitudinal waves" the wave length is between two nodes ...(but for transverese it is wavelength/2.) so i thought i have to be 1/5=0.2 m (20 cm) so i picked it...but im sure you are correct..