AIPMT 2007 Prelims

178 Questions • 178 Minutes • 2007

Take This Paper Online

All Questions — Click to View Solution

Q21
The particle executing simple harmonic motion has a kinetic energy K₀ cos² ωt. The maximum values of the potential energy and the total energy are respectively
View Answer & Solution
Q22
Monochromatic light of frequency 6.0 × 10¹⁴ Hz is produced by a laser. The power emitted is 2 × 10⁻³ W. The number of photons emitted, on the average, by the sources per second is
View Answer & Solution
Q23
Two satellites of earth, S₁ and S₂ are moving in the same orbit. The mass of S₁ is four times the mass of S₂. Which one of the following statements is true?
View Answer & Solution
Q24
A⃗ and B⃗ are two vectors and θ is the angle between them, if |A⃗ × B⃗| = √3 (A⃗ · B⃗), the value of θ is
View Answer & Solution
Q25
A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment μ is given by
View Answer & Solution
Q26
The total energy of electron in the ground state of hydrogen atom is – 13.6 eV. The kinetic energy of an electron in the first excited state is
View Answer & Solution
Q27
A 5 watt source emits monochromatic light of wavelength 5000 Å. When placed 0.5 m away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of 1.0 m, the number of photoelectrons liberated will be reduced by a factor of
View Answer & Solution
Q28
A particle executes simple harmonic oscillation with an amplitude a. The period of oscillation is T. The minimum time taken by the particle to travel half of the amplitude from the equilibrium position is
View Answer & Solution
Q29
A black body is at 727° C. It emits energy at a rate which is proportional to
View Answer & Solution
Q30
The resistance of an ammeter is 13 Ω and its scale is graduated for a current upto 100 amps. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 amperes by this meter. The value of shunt-resistance is
View Answer & Solution
Q31
An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62°C, its efficiency is doubled. Temperature of the source is
View Answer & Solution
Q32
The electric and magnetic field of an electromagnetic wave are
View Answer & Solution
Q33
What is the value of inductance L for which the current is maximum in a series LCR circuit with C = 10 μF and ω = 1000 s⁻¹ ?
View Answer & Solution
Q34
Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature, then it will show
View Answer & Solution
Q35
Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius R with constant speed v. The time period of the motion
View Answer & Solution
Q36
If the cold junction of a thermo-couple is kept at 0°C and the hot junction is kept at T°C then the relation between neutral temperature (Tn) and temperature of inversion (Ti) is
View Answer & Solution
Q37
Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature t°C, the power received by a unit surface, (normal to the incident rays) at a distance R from the centre of the sun is (where σ is the Stefan's constant)
View Answer & Solution
Q38
A steady current of 1.5 amp flows through a copper voltameter for 10 minutes. If the electrochemical equivalent of copper is 30 × 10⁻⁵ g coulomb⁻¹, the mass of copper deposited on the electrode will be
View Answer & Solution
Q39
For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct?
View Answer & Solution
Q40
Which one of the following on reduction with lithium aluminium hydride yields a secondary amine?
View Answer & Solution
Paper Info
  • Exam: AIPMT Prelims
  • Year: 2007
  • Questions: 178
  • Duration: 178 mins
Take Online All Papers