• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

AS Physics P1 MCQs Preparation Thread.

omg

Messages
626
Reaction score
3,628
Points
253
q.21 :
pressure due to oil = 830* 9.81*x
pressure due to water = 1000*9.81*(2000-x)
so now the equation is ,
17.5x10^6 = (830*9.81*x) + (1000*9.81*(2000-x)
solve it and u get the ans 1270 (D)
 

omg

Messages
626
Reaction score
3,628
Points
253
and for qs.25,
distance b/w X and Y = 1.5 lambda
and we know dat a path diffrence of 1 lambda(wavelength) = a phase diff of 2 pi radians.
it means , 1 lamda = 2pi rad
so 1.5 lamda = 2 x 1.5pi => 3pi
so n = 3 (C)
 
Messages
373
Reaction score
33
Points
28
well when they will strike inelastically some of their K.e will be converted to other forms so shouldnt they seperate with less speed??
 
Messages
249
Reaction score
90
Points
38
well when they will strike inelastically some of their K.e will be converted to other forms so shouldnt they seperate with less speed??
particly ya..cz KE is less..in sum case da object dosnt move..they stay still...
like in the case wen a lump of clay is droped on da floor..al KE has been transformd into wrk done in flattein da lump n into sum sound energy..
i hope i am claer enough!!
 
Top