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## AIEEE Physics (2003)

Created by Quizmagic Team on Jan 09, 2013 06:53 PM
`There are 25 questions of AIEEE Physics 2003 examination. Take this sample test of previous year of Physics to check your preparation for All India Engineering Entrance Examination.`
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 Questions 25 Minutes 15 High Score 33 01:12 Quiz Played 128 times
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### Sample Questions

Question 1
A thin rectangular magnet suspended freely has a period of oscillation equal to T. Now it is broken into two equal halves (each having half of the original length) and one piece is made to oscillate freely in the same field. If its period of oscillation is T′, the ratio T′/T is
 41278 41276 1/2√2 2
Question 2
A magnetic needle lying parallel to a magnetic field requires W units of work to turn it through 600. The torque needed to maintain the needle in this position will be
 √3 W 2W W √3/2 W
Question 3
The magnetic lines of force inside a bar magnet
 are from south-pole to north-pole of the magnet do not exist depend upon the area of cross-section of the bar magnet are from north-pole to south-pole of the magnet
Question 4
Curie temperature is the temperature above which
 a ferromagnetic material becomes paramagnetic a paramagnetic material becomes ferromagnetic a paramagnetic material becomes diamagnetic a ferromagnetic material becomes diamagnetic
Question 5
A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49N, when the lift is stationary. If the lift moves downward with an acceleration of 5m/s2, the reading of the spring balance will be
 24 N 74 N 15 N 49 N
Question 6
A strip of copper and another of germanium are cooled from room temperature to 80 K. The resistance of
 copper strip increases and that of germanium decreases copper strip decreases and that of germanium increases each of these increases each of these decreases
Question 7
Consider telecommunication through optical fibres. Which of the following statements is not true?
 Optical fibres have extremely low transmission loss Optical fibres may have homogeneous core with a suitable cladding Optical fibres can be of graded refractive index Optical fibres are subjective to electromagnetic interference from outside
Question 8
The negative Zn pole of a Daniell cell, sending a constant current through a circuit, decreases in mass by 0.13 g in 30 minutes. If the electrochemical equivalent of Zn and Cu are 32.5 and 31.5 respectively, the increase in the mass of the positive Cu pole in this time is
 0.242 g 0.180 g 0.126 g 0.141 g
Question 9
Dimension of 1/µ0ε0, where symbols have their usual meaning, are
 [L-2 T2] [LT-1] [L2 T-2] [L-1T]
Question 10
A circular disc X of radius R is made from an iron plate of thickness t, and another disc Y of radius 4R is made from an iron plate of thickness t/4. Then the relation between the moment of inertia IX and IY is
 IY = 16 IX IY = 64 IX IY =  IX IY = 32 IX
X
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