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  #2  
30th April 2013, 09:33 AM
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Join Date: May 2012
Re: IIT JEE Test Series Online

11. Speed of recession of galaxy is proportional to its distance
isbigdeal.blogspot.com/
A. directly B. inversely C. exponentially D. none of these
12. If a substance goes in a magnetic field and is pushed out of it, what is it ?
A. Paramagnetic B. Ferromagnetic C. Diamagnetic D. Antiferromagnetic
13. Which is not a scalar quantity?
A. Work B. Power C. Torque D. Gravitational
Constant
14. Minimum energy required to excite an electron in a Hydrogen atom in ground state is :
A. -13.6 eV B. 13.6 eV C. 10.2 eV D. 3.4 eV
15. If Gravitational Constant is decreasing in time, what will remain unchanged in case of a
satellite orbiting around earth ?
A. Time period B. Orbiting radius C. Tangential velocity D. Angular velocity
16. If a transparent medium of refractive index µ = 1.5 and thickness t = 2.5 x 10-5 m is inserted
in front of one of the slits of Young's Double Slit experiment, how much will be the shift in the
interference pattern ? The distance between the slits is 5.0 x 10-3 cm and that between slits and
screen is 100 cm.
A. 5 cm B. 2.5 cm C. 0.25 cm D. 0.1 cm
17. How does light propagate in optical fibres?
A. Total internal
reflection B. Refraction C. Reflection D. None of these
18. Dispersion of light is due to
A. wavelength B. intensity of light C. density of medium D. none of these
19. Which of the following conclusions is correct regarding
a stationary body?
A. No force is acting on the body
B. Vector sum of forces acing on the body is zero
C. The body is in vacuum
D. The forces acting on the body do not constitute a couple
20. Energy released in stars is due to
A. Fission B. Fusion C. Combustion D. Chemical reaction
21. 13 days is the half-life period of a sample. After how many days, the sample will become
1/16th of the original substance ?
A. 52 B. 3.8 C. 3 D. none of these
22. Absolute zero is the temperature at which
A. water solidifies B. all gases become liquid
C. motion of molecules becomes minimum D. everything solidifies
23. Motion of liquid in a tube is described by
A. Bernaulli's Theorem B. Poiseuille Equation C. Stoke's Law D. Archimedes'
Principle
24. Molecular motion shows itself as
A. Temperature B. Internal Energy C. Friction D. Viscosity
25. Which is this gate ?
A. AND B. NAND
C. OR D. NOR
26. Energy bands in solids are a consequence of
A. Ohm's Law B. Pauli's Exclusion Principle
C. Bohr's Theory D. Heissenberg's Uncertainty Principle
27. A boy of mass M stands on the floor of an elevator moving downwards with an acceleration
a which is less than g. The force exerted by the boy on the floor of the elevator is
A. Mg x Ma B. g + a C. Mg – Ma D. Mg + Ma
28. A body A of mass m1 exerts a force on another body B of mass m2. If the acceleration of B be
a2, then the acceleration (in magnitude ) of A is
A. m2/m1 (a2) B. m1m2 a2 C. m1/m2 (a2) D. (m1 + m2) a2
29. What does not change when sound enters from one medium to another ?
A. Wavelength B. Speed C. Frequency D. none of these
30. Resolving power of a microscope depends upon
A. wavelength of light used, directly B. wavelength of light used, inversely
C. frequency of light used D. focal length of objective
31. An astronaut of weight Mg is in a rocket accelerating upward with an acceleration of 4g. The
apparent weight of the astronaut will be
A. 5Kg B. 4Kg C. Mg D. zero
32. One proton beam enters a magnetic field of 10-4 m/s normally, sp. charge = 1011 C/kg,
velocity = 109 m/s. What is the radius of the circle describe by it ?
A. 0.1 m B. 100 m C. 10 m D. none of these
33. If a black body radiates 20 calories per second at 227°C, it will radiate at 727°C
A. 10 calories per
second
B. 80 calories per
second
C. 320 calories per
second D. none of these
34. If a carnot engine is working with source temperature equal to 227°C and its sink
temperature is at 27°C, its efficiency will be
A. 20% B. 10% C. 67% D. 50%
35. If the frequency of an oscillating particle is n, then the frequency of oscillation of its potential
energy is
A. n B. 2n C. n/2 D. 4n
36. If an electron oscillates at a frequency of 1 GHz, it gives :
A. X-rays B. Micro-waves
C. Infra-red rays D. None of these
37. Earth's atmosphere is richest in
A. Ultra-violet rays B. Infra-red rays C. X-rays D. Micro-waves
38. Cathode rays consist of
A. Photons B. Electrons C. Protons D. α -particles
39. A body of mass m1 is moving with a velocity V. It collides with another stationary body of
mass m2. They get embedded. At the point of collision, the velocity of the system
A. increases B. decreases but does not become zero
C. remains same D. becomes zero

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  #3  
3rd December 2015, 09:05 AM
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Re: IIT JEE Test Series Online

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  #4  
3rd December 2015, 09:26 AM
Super Moderator
 
Join Date: Aug 2012
Re: IIT JEE Test Series Online

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