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[QUOTE=ijt.dolora@gmail.com;272846][B][U]Name of the Organaisation [/U][/B]: Indian Institute of Space  Science and Technology (iist.ac.in)
[B][U]Type of Announcement [/U][/B]: ISAT Mock Test 2013
[B][U]Home Page [/U][/B]: [URL]http://www.iist.ac.in/[/URL]
1. Following two wave trains are approaching each other.
y1 = a sin 200 p t y2 = a sin 208 p t
The number of beats heard per second is :
A. 8 B. 4 C. 1 D. 0
2. One of the geo-stationary satellites of India is vertically above
A. New Delhi B. Mumbai C. Allahabad D. None of these
3. The ratio of secondary to primary turns is 4:5. If power input is P, what will be the ratio of power output (neglect all losses) to power input ?
A. 4:9 B. 9:4 C. 5:4 D. 1:1
4. Lenz's law applies to
A. electrostatics B. lenses
C. electro-magnetic induction D. cinema slides
5. If Sn is doped with As, what will be the result ?
A. n-type semiconductor
B. p-type semiconductor
C. intrinsic semiconductor
D. none of these
6. What is the degree of freedom in case of a mono atomic gas ?
A. 1 B. 3 C. 5 D. None of these
7. Speed of recession of galaxy is proportional to its distance
A. directly B. inversely C. exponentially D. none of these
8. 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
9. Which is not a scalar quantity?
A. Work B. Power C. Torque D. Gravitational Constant
10. 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
11. 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
12. How does light propagate in optical fibres?
A. Total internal reflection B. Refraction C. Reflection D. None of these
13. Dispersion of light is due to
A. wavelength B. intensity of light C. density of medium D. none of these
14. 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
15. Energy released in stars is due to
A. Fission B. Fusion C. Combustion D. Chemical reaction
16. 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
17. Absolute zero is the temperature at which
A.water solidifies B. all gases become liquid
C. motion of molecules becomes minimum D. everything solidifies
18. Motion of liquid in a tube is described by
A. Bernaulli's Theorem B. Poiseuille Equation C. Stoke's Law D. Archimedes' Principle
19. Molecular motion shows itself as
A. Temperature B. Internal Energy C. Friction D. Viscosity
20. 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

[B][U]See more question get here [/U][/B]: [URL]http://www.iist.ac.in/[/URL][/QUOTE]

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