paper pattrenn SSC-i,2012
Physics,
SECTION-B
Attempt any 11 questions,
i- What is the plasma physics?
ii- What are derived units?Give two examples.
iii- Can a body moving with certain velocity in the direction of east can have acceration in the direction of west?
iv-Why the weight ofa body becomes 1/6th of it's weight on moon?
v -if a moving body has no accelration does it mean that no force is acting on it?
vi-provr that the rate of change in momentum is equal to applied force?
vii-what is the diffrence between static and kinetic friction?
viii-can you explain why an inflated balloon shoots off into air when it's air is released?
ix-what is mean by base and derived units give two exampels of derive units?
x- a stone of mass 4 kg is thrown in the downward direction from the roof of the building.it reaches
the surface of earth in 2 seconds how long a 18 kg will take to reach earth ignoring air friction.
xi-define the following aspects of vernier's callipers.
a)Main scale (b)Least count
xii-why it is sometimes dangerous to apply brakes only onthe front wheel of cycle.
xiii-two forces of 10N and 8N are acting on a body.determine the maximum and minimum
magnitude of the resultent vector force.
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These are only short questions of 33 marks. 3x11=33
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