Physics Doubt

[AStarHunter]

guyz, how do u do qs 10 (both parts) & Q11 (b) in this paper --->http://www.xtremepapers.me/CIE/Cambridge IGCSE/0625 - Physics/0625_s10_qp_32.pdf
Mark Scheme: http://www.xtremepapers.me/CIE/Cambridg ... _ms_32.pdf
Thnx && Gd Luck 2day :wink:

 

[xIshtar]

Basically, if the frequency is 1.5 times the value, there are 1.5 x the amount of waves there was previously.. Same amplitude, just more bunched together.
The timebase would not need to be changed for B, as there is no more waves, just a change in amplitude.
The V/cm shows how much it is deflected for every voltage applied. Thus, you would need to increase it by a factor of 2, to 10, to have the effect of halving the amplitude.

Hope I helped.

Good luck to you too