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Physics MCQ questions need help!
- Thread starter darkpichu
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Q10) answer is B. Apply F=ma. because acceleration is constant so the force will also be constant. The force will not reach zero because there is some acceleration.
Q12) answer is C. when you have to find equilibrium in this sort of question, look for triangles which have arrows in same direction, ie, either clockwise or anticlockwise. In R and S, directions of arrows is in same direction.
Q14) answers is B. +ve charge always moves along the direction of electric field and -ve charge always moves against the direction of electric field. in this case electric field is going right so - ve charge (electron is a -ve charge) will move to left.
Q20) answer is A
change in height in liquid Q = pressure exerted by liquid P
PqGH1=PpGH2
PqGX=PpG(2X) where X is the change in height of liquid Q and 2X is the length of liquid P
Pp/Pq=X/2X
=1/2
Q29) answer is A. The electron travel to earth leaving electron deficiency and creating +ve charge in earthed plate. The -ve charges is induced in the above plate thus creating electric field between them with its direction always from +ve to -ve.
Q12) answer is C. when you have to find equilibrium in this sort of question, look for triangles which have arrows in same direction, ie, either clockwise or anticlockwise. In R and S, directions of arrows is in same direction.
Q14) answers is B. +ve charge always moves along the direction of electric field and -ve charge always moves against the direction of electric field. in this case electric field is going right so - ve charge (electron is a -ve charge) will move to left.
Q20) answer is A
change in height in liquid Q = pressure exerted by liquid P
PqGH1=PpGH2
PqGX=PpG(2X) where X is the change in height of liquid Q and 2X is the length of liquid P
Pp/Pq=X/2X
=1/2
Q29) answer is A. The electron travel to earth leaving electron deficiency and creating +ve charge in earthed plate. The -ve charges is induced in the above plate thus creating electric field between them with its direction always from +ve to -ve.