AIEEE Physics (2007)

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AIEEE Physics (2007)

Created by Quizmagic Team on Jan 09, 2013 06:55 PM.

There are 25 questions of AIEEE Physics 2007 examination. Take this quiz as sample test to prepare yourself for AIEEE Physics.

Top 5 Scores

	Anonymous	85 01:49
	Anonymous	81 01:06
	Anonymous	74 01:04
	Anonymous	72 00:50
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AIEEE Physics

Sample Questions

Question 1

The resistance of a wire is 5 ohm at 50°C and 6 ohm at 100°C. The resistance of the wire at 0°C will be

2 ohm
1 ohm
3 ohm
4 ohm

Question 2

A charged particle moves through a magnetic field perpendicular to its direction. Then

both momentum and kinetic energy of the particle are not constant
kinetic energy changes but the momentum is constant
the momentum changes but the kinetic energy is constant
both, momentum and kinetic energy of the particle are constant

Question 3

If C_pand C_vdenote the specific heats of nitrogen per unit mass at constant pressure and constant volume respectively, then

C_p - C_v = R/14
C_p - C_v = R
C_p - C_v = 28 R
C_p - C_v = R/28

Question 4

A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of

10000
100
10
1000

Question 5

Two lenses of power -15 D and + 5D are in contact with each other. The focal length of thecombination is

− 10 cm
− 20 cm
+ 20 cm
+ 10 cm

Question 6

A block of mass ‘m’ is connected to another block of mass ‘M’ by a spring (massless) of spring constant ‘k’. The blocks are kept on a smooth horizontal plane. Initially the blocks are at rest andthe spring is unstretched. Then a constant force ‘F’ starts acting on the block of mass ‘M’ to pullit. Find the force on the block of mass ‘m’

(M+ m)F/m
mF/(m + M)
MF/(m + M)
mF/M

Question 7

Which of the following transitions in hydrogen atoms emit photons of highest frequency?

n = 2 to n = 6
n = 1 to n = 2
n = 6 to n = 2
n = 2 to n = 1

Question 8

The potential at a point x (measured in µ m) due to some charges situated on the x-axis is givenby V(x) = 20/(x² − 4) Volts. The electric field E at x = 4 µm is given by

5/3 Volt/µ m and in the +ve x direction.
10/9 Volt /µ m and in the − ve x direction
10/9 Volt/ µ m and in the +ve x direction.
5/3 Volt/µ m and in the −ve x direction

Question 9

Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate?

The number of free electrons for conduction is significant only in Si and Ge but small in C.
The number of free conduction electrons is significant in C but small in Si and Ge
The number of free conduction electrons is negligible small in all the three.
The number of free electrons for conduction is significant in all the three

Question 10

A Carnot engine, having an efficiency of η = 1/10 as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is

1 J
90 J
99 J
100 J

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