Physics Question ( 31 )

[Hazooba]

Guys whats the deflection for the alpha and beta rays ?? And whats the answer for the echo I got 146 I know its wrong but how

 

[Mohab88]

Guys whats the deflection for the alpha and beta rays ?? And whats the answer for the echo I got 146 I know its wrong but how

in the echo question speed = 2d/difference in time so the answer will be 312.5

 

[posh teen]

in the echo question speed = 2d/difference in time so the answer will be 312.5

yup i did the same

 

[Mohab88]

yup i did the same

Nice job , good luck

 

[SamThomas]

Guys , its 12 V and the current was 12/12 = 1 A
For the echo question you had to do (250 x 2) / (t2-t1) = 500/1.6 = 312.5 m/s

 

[posh teen]

Nice job , good luck

Nice job , good luck

tahnkxxx u 2!!

 

[Hazooba]

GUYYS whats the deflection of the alpha and beta rays

 

[ICTigcse]

alpha upwards
beta downwards

 

[mohammed sayed]

6v for sure coz it was two!!

 

[Mohab88]

6v for sure coz it was two!!

12 v cuz it is in parallel circuit not series !! so voltage not change in parallel circuit

 

[ICTigcse]

12 v 100% sure they are all parallel

 

[Saadbaig]

anyone has paper 3 physics?

 

[Saadbaig]

Guys for density is it okay to wrote - Density tells how heavy something is? Since I forgot to mention the volume and mass.

Density is the ratio of Mass to Volume

 

[alsurimi2012]

Much more than enough

depends how much you get in paper 1

 

[Wolfgangs]

Guys, about the velocity/time graph. The retardation must be written as negative value, right?

 

[Omar Shabib]

what about the manometer question?? do we have to convert 250mm to m or simply keep it as it is?

 

[shk123]

what about the manometer question?? do we have to convert 250mm to m or simply keep it as it is?

we had to convert it!!!!!!!!!!!!!!

 

[Qtie Pie]

Guys for density is it okay to wrote - Density tells how heavy something is? Since I forgot to mention the volume and mass.

nahhh.. i dont think u will get mark for that..

 

[ahmed soliman]

if the arrow of the force on the left side goes upwards it means it is clockwise

The arrow of the force faces upwards. So, ya it is anticlockwise. Make sure that you keep an upward arrow in it.

 

[Wolfgangs]

There was a question related to the loudness or something like. Can someone please remind of the question which I assume it involves amplitude and wavelength? What was the answer for the question which was two sections.

 

[ahmed soliman]

There was a question related to the loudness or something like. Can someone please remind of the question which I assume it involves amplitude and wavelength? What was the answer for the question which was two sections.

amplitude increased so louder
wavelength increased so frequency decreased so lower pitch