Physics P2 AS

[Arslanjaved]

guys does anyone remember the answer to uncertainty part? and value of C
My C value was 1.03 x 10^-3
is this correct please help?

 

[workaholic]

yeah i also got the same but uncertainty is quoted to one significant figure so i wrote my final answer as 0.001.....

 

[fathimaash]

guys does anyone remember the answer to uncertainty part? and value of C
My C value was 1.03 x 10^-3
is this correct please help?

yea i got da same thing,,,.............

 

[Arslanjaved]

Yar i got uncertainty as 0.009 x 10^-3
If i remember correctly
Just want to make sure that if we have correct value of C will we get the uncertainty right?

 

[mominzahid]

The frequency of a certain wave is 500Hz and its speed is 340ms
–1
.
What is the phase difference between the motions of two points on the wave 0.17m apart?
A. π/4 rad
B. π/2rad
C. 3π/4 rad
D π rad
what is the answer people?/

 

[lionkill3r]

The frequency of a certain wave is 500Hz and its speed is 340ms
–1
.
What is the phase difference between the motions of two points on the wave 0.17m apart?
A. π/4 rad
B. π/2rad
C. 3π/4 rad
D π rad
what is the answer people?/

Wavelenght = 340/500 = 0.68 m

Use equation PhaseDifference = 2Pi *pathdifference / wavelenght
Substitute pathdifference = 0.17 wavelenght = 0.68 and leave answer in terms of pi ...
There fore answer is B 0.5Pi Radians

 

[mominzahid]

Wavelenght = 340/500 = 0.68 m

Use equation PhaseDifference = 2Pi *pathdifference / wavelenght
Substitute pathdifference = 0.17 wavelenght = 0.68 and leave answer in terms of pi ...
There fore answer is B 0.5Pi Radians

what is path difference in this?

 

[lionkill3r]

since the question says the 2 points are 0.17M APART 0.17m is the path difference