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Guess
Papers
(FOR
CLASS BA,BSC PART 1) |
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B.SC.
Part One 3rd Year
Paper:Physics (Paper“A”)
Time Allowed:3 hours Max.Marks:30
Note: Attempt
any five questions.All questions carry equal marks.
Q.1 State kepler's laws
of planetary motion?
Q.2
Derive mass energy relation and show that relativistic energy
is given by E2=p2 c2
+ m2 c4
Q.3
What is kinetic of rotation? Derive
an expression for it.
Q.4
Show that the kinetic energy of rotation of a rigid body is given
by k=1/2 lw2.
Q.5 Explain
law of conservation of angular momentum in detail. Give two applications
of it.
Q.6 Calculate
the angular momentum about the earth's centre of a 8.43 kg person
on the equator of the
rotating earth.
Q.7 Expalin
can body have energy with out havung momentu.
Q.8
Derive the FULER'S equation of
motion in the case of a rigit body.
Q.9
Define scalar and vector fields? Prove the gradient of a scalar
fiels is a vector field?
Q.10
Derive the EULER'S equation of motion in the case of rigit body?
Q.11 What is center
of mass? Find the relation for the moment of inertia of a solid body
of uniform density
p.
Q.12 What is simple
harmonic motion? A mass “m” attached with an elastic spring
with spring constant k
placed on a frictionless horizontal surface is displaced from its
equilibrium position slightly. Derive
the relations for the time period frequency instantaneous velocity
and phase of the system.
Q.13 When
the angular speed w of an object increases its angular momentum may
not also increase. Give
example.
Q.14 Calculate
the speed of a partice whose total energy is equal to twice its rest
energy.
Q.15 Young's
modulus for rubber or lower than young's modulus for steel? By this
criterion, is rubber more
elastic than steel? |
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