SRM University 2007 B.Tech MODEL - Question Paper

SRM UNIVERSITY
B.Tech ENTRANCE exam - 2007
MODEL ques. PAPER
Duration: two Hrs Max. Marks: 100
PART one – PHYSICS
1. The S.I unit of magnetic dipole moment is
(a) Am-1
(b) Am2
(c) TmA-1
(d) TmA-2
2. Dimensional formula of Bulk modulus of elasticity ‘K’ is
(a) ML-1 T-2
(b) MLT-2
(c) M0 L0 T0
(d) ML-2 T-2
3. The position of an object moving along x-axis is provided by x = a + bt2 where a = 8.5m and
b = 2.5 m/s2 and t is measured in seconds. What is its velocity at t = two s ?
(a) 100 m/s
(b) 10 m/s
(c) five m/s
(d) 25 m/s
4. When a body is thrown with a velocity ‘u’ making an angle ? with the horizontal plane,
the maximum distance covered by it in the horizontal direction is
(a) u2 sin ?
g
(b) u2 sin 2?
g
(c) u2 sin 2?
2g
(d) u2 cos 2?
g
5. The flow is stated to be turbulent if Reynolds number is
(a) beneath 1000
(b) greater than 2000
(c) ranging from 1000 & 1500
(d) ranging from 1500 & 2000
6. What is the pressure on a swimmer, 10 m beneath the surface of a lake?
(a) 0.3 atm
(b) 20 atm
(c) one atm
(d) two atm
7. If the earth suddenly shrinks to half of its current radius, the acceleration due to gravity
will be
(a) g/2
(b) g/4
(c) 4g
(d) 2g
8. Which of the subsequent functions of time represent a simple Harmonic Motion?
(a) Se-?
(b) log (?t)
(c) sin ?t – cos ?t
(d) sin2 ?t
9. The motion of a simple pendulum swinging through small angles is simple harmonic.
The period of oscillation is provided by
(a) T = 2p v L / g
(b) T = p v g / L
(c) T = p v L / g
(d) T = 2p vL
g
10. “Isochoric” is a thermodynamic process in which
(a) quantity constant
(b) temperature constant
(c) pressure constant
(d) no heat flows ranging from the system and the surroundings
11. For an ideal gas, the relation ranging from molar specific heats at constant pressure and
volume, the relation Cp- Cv=
(a) 3/2 KBT
(b) R
(c) 3R
(d) 4R
12. The temperature of the surface of the sun is nearly equal to
(a) 1000 K
(b) 6000 K
(c) 600 K
(d) 3000 K
13. For a perfectly black body, the absorptive power is

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