PHYSICS p42 GT

[Fatima Iftikhar]

I forgot == Just use formula la. I = 0.25 Io * exp(-u*x)

section b went good.

 

[TANJIAHOU]

Yup. Nothing left to discuss

 

[TANJIAHOU]

Actually the questions were easy. But we tend to think out of the box -_-

 

[Fatima Iftikhar]

Actually the questions were easy. But we tend to think outside the box -_-

ikr?
btw, in op-amp question, when input was at its peak, output was positive right?

 

[TANJIAHOU]

Yes if V+ > V- output voltage is +ve graph is square wave

 

[Fatima Iftikhar]

Yes if V+ > V- output voltage is +ve graph is square wave

yesss. thats what i did.

 

[Fares]

can you guys please atleast say what came in the paper?

 

[saadgujjar]

what was the answer to mass of ion ...and its next part

 

[TANJIAHOU]

1)mv^2/r = Bqv
m = Bqr/v
2) r = mv/Bq
Path A radius is half of path B because ions in A have mass half of B, since v, B and q are all the same for both A and B

 

[saadgujjar]

1)mv^2/r = Bqv
m = Bqr/v
2) r = mv/Bq
Path A radius is half of path B because ions in A have mass half of B, since v, B and q are all the same for both A and B

I wrote this all but dis not mention that its mass is half...wrote its mass is smaller and explain it with eqn...will I loss any mark?

 

[talha196]

1)mv^2/r = Bqv
m = Bqr/v
2) r = mv/Bq
Path A radius is half of path B because ions in A have mass half of B, since v, B and q are all the same for both A and B

In the start of question he said ions of same isotopes. Path was diff due to diff charge. Quntitatively charge was double on A

 

[TANJIAHOU]

Oops!

 

[saadgujjar]

In the start of question he said ions of same isotopes. Path was diff due to diff charge. Quntitatively charge was double on A

isotopes has different mass due to different number of neutrons

 

[boxfire1995]

They had stated the charge is 1.6E-19. So charge couldnt be different.

In the start of question he said ions of same isotopes. Path was diff due to diff charge. Quntitatively charge was double on A

 

[talha196]

isotopes has different mass due to different number of neutrons

Ions of same isotopes likha tha .

 

[talha196]

They had stated the charge is 1.6E-19. So charge couldnt be different.

Charge on B was only given.

 

[boxfire1995]

Sorry, im forgetting the paper. I just remembered that 1.6E-19 was given. But hey, isotopes have the same charge! Like, they have different no. Of neutrons but same no. Of protons.

 

[TANJIAHOU]

Yes he is correct. Only charge on B was given. Isotopes have roughly the same mass. So isotopes in A have double charge.

 

[boxfire1995]

Yes he is correct. Only charge on B was given. Isotopes have roughly the same mass. So isotopes in A have double charge.

Charge on isotopes is same. You can google it. Isotopes have similar charge as neutrons have no charge. Then how can charge be different?

 

[TANJIAHOU]

They are ions which are charged.. Ion A is +2 charge Ion B is +1 charge