Physics ATP disussion

[papajohn]

Zero error is accepted??

 

[Saad Mughal]

thanks
and one more question....was the rule ,in lens question, fixed...i gave placing the rule as close as possible to object/lens while taking readings <suggest two practical methods of taking the readings accurately>

Don't know.
I wrote, repeat and average.

 

[Shadow]

Well over here no one left any point. Everyone joined all the points.

Nope i did not join all the points, two points were lying above the curve, but very close to it i hope thats correct. Though my curve did pass through the (20,20) point, n hence the focal length was cumin correct

 

[Saad Mughal]

Zero error is accepted??

No. They said "Moving in the opposite direction".

 

[Shadow]

Zero error is accepted??

If u wrote bout that, it should have been like ' avoid zero error by placing the zero mark accurately at the object'. I suppose it vil be correct

 

[Shadow]

No. They said "Moving in the opposite direction".

R v talking bout q1?

 

[Saad Mughal]

R v talking bout q1?

Last question. Voltmeter going in "opposite direction".

 

[Shadow]

Zero error is accepted??

Last question. Voltmeter going in "opposite direction".

Ohh ok. Then it wont be accepted, coz in case of a zero error in voltmeter, needle moves to the positive readings beyond zero mark

 

[Shadow]

in the last part, i wrote that the reading on voltmeter can be noted using a magnifying glass from a dsitance. is this correct?

 

[Saad Mughal]

in the last part, i wrote that the reading on voltmeter can be noted using a magnifying glass from a dsitance. is this correct?

How?

 

[Shadow]

How?

his head was blocking light from reaching, so if he stays at a distance and uses magnifying glass to note the reading, light wont be blocked from reaching the circuit

 

[Saad Mughal]

his head was blocking light from reaching, so if he stays at a distance and uses magnifying glass to note the reading, light wont be blocked from reaching the circuit

Why not simply take reading from above or move voltmeter away from window?

 

[Shadow]

Why not simply take reading from above or move voltmeter away from window?

actually that did not cum to my mind at that time

 

[Saad Mughal]

actually that did not cum to my mind at that time

Oh.

 

[Nouman1997]

I was getting the same shape but longer (horizontally).
The thing is, if you mentioned 'x' and 'y', you won't get the marks for the labeling since you had to label 'v/cm' and 'u/cm'.
The marking is done as follows:
- 1 mark for labeling the axis.
- 1 mark for the best fit curve, neat.
- 1 mark for plotting the points (more than 1/2 page).
- 1 mark for the scaling (no awkward scales).

My 3 marks are confirmed

 

[Sparky123]

MashaAllah, I.wrote long, thick connecting wires of voltmeter, low resistance far further.

 

[Nouman1997]

Why not simply take reading from above or move voltmeter away from window?

I wrote that use a digital Voltmeter and connect it to the computer so that you can easily read the readings without obstructing the light
I hope its correct

 

[Sparky123]

Does any of you remember exactly, what was the question about voltmeter deflection, was it stated switch is off?

 

[papajohn]

What was the focal lenght in Q1 last part??

 

[Nouman1997]

What was the focal lenght in Q1 last part??

10