PHYSICS P 12. HOW WAS IT??

[.cookie.]

nope

how is not the same question? looks the same

 

[.cookie.]

what was the answer to question 39? the one in which alpha particles were released at a rate of 100 s^-1

 

[Equilibrium]

what was the answer to question 39? the one in which alpha particles were released at a rate of 100 s^-1

C

 

[liu ling]

was the acceleration 1.1? from the v-t graph question
the wave, radio or micro?
frequency of the stationary wave in the tube?
ans for the question in which a hand was supporting a block with 2 newton meters attached
and also, ans for the piston and compression of gas question

any one?

 

[Equilibrium]

any one?

The acceleration was 1.1
The wave was radio
Frequency of tube was 1650
A hand supporting the block was 6

 

[Equilibrium]

any one?

And the piston compression was 80 I guess.
You had to convert 500cm squared to .05m squared and 30 cm to .3m and multiply by pressure.

 

[Silent Hunter]

And the piston compression was 80 I guess.
You had to convert 500cm squared to .05m squared and 30 cm to .3m and multiply by pressure.

was it option A?

 

[liu ling]

thank you!!
what abt that polycrystalline and crystalline question?
and that question which had 15emf source. Dont remember the whole question
and which place would the alpha particle hit in an electric field?
and was the uncertainty 3%?

 

[Evil_Maknae]

C

I chose the one with nucleons lost at a rate of 400/s. Which one was that? C?

 

[Evil_Maknae]

thank you!!
what abt that polycrystalline and crystalline question?
and that question which had 15emf source. Dont remember the whole question
and which place would the alpha particle hit in an electric field?
and was the uncertainty 3%?

Yeah I got uncertainty 3 %
for the alpha particle, I think i chose C...

 

[.cookie.]

I chose the one with nucleons lost at a rate of 400/s. Which one was that? C?

yes that was C

 

[.cookie.]

Was the efficiency 8.3% or 83%?
And what was the answer to the LDR question?
What was the floating object one about? What was the answer?
And was the diffraction one 4 or 9?

 

[raamish]

what was the ice and water one. I chose the option in which their speed is same and that the atoms of ice had more seperation than liquid. Is this correct or wrong???i dont remember the option

 

[geek101]

what was the ice and water one. I chose the option in which their speed is same and that the atoms of ice had more seperation than liquid. Is this correct or wrong???i dont remember the option

yep i chose that too, ice expands so molecules are further apart, and both have the same temp, 0 degrees, so the avg ke of the molecules is the same too

 

[raamish]

yep i chose that too, ice expands so molecules are further apart, and both have the same temp, 0 degrees, so the avg ke of the molecules is the same too

i hope its right, i thought a lot on that one P

 

[emkay]

what about the polycrystalline and crystalline question?
was it C or D?

 

[geek101]

what about the polycrystalline and crystalline question?
was it C or D?

i did D :/

 

[raamish]

my efficiency came as 83

 

[Silent Hunter]

but does ice expands more than the spacing in water molecules?

 

[raamish]

what was the answer to the floating object one? i chose D viscous force is 0.