The Commission publishes this paper without an answer key, so no answers are shown.
1. MASER |
2. EDAX
3. RADAR
4. MESFET |
5. GSLV : |
B. Fill in the blanks : |
6. — ———— is used to detect the presence of an electric charge.
7. The absorption of ink by blotting paper involves —————————.
8. Smooth cylinder lying on its convex surface remains in ————————— equilibrium.
9. The spontaneous decay of nuclei is called —————————.
10. When hydrogen atom is in its first excited level, its radius is ——————— its ground
state radius. .
11. The ability of a material to remain magnetized after removal of the magnetizing force is
known as ————_.
12. The phase difference between the input and output ac voltage signals of a common-emitter
amplifier is —————–_-__.
13. The tidal waves in the sea are primarily due to ————————_.
14. The velocity of a particle performing simple harmonic motion, when it passes through its
mean position is ———————_.
15. The range of a projectile is maximum, when the angle of projection is ———————.
[P.T.0.]
16. An ideal heat engine operates between two temperature 600 K and 900 K. What is the
efficiency of the engine?
17. Moment of inertia of a triangular section of base
18. The photoelectric effect was explained by Albert Einstein by assuming that:
20. The Lyman series of hydrogen spectrum lies in the region p
21. Two plane mirrors are at 45° to each other. If an object is placed between them, then the
number of images will be
22. A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the
Le done is 25 joules, the angle which ibs fase makes with the direction of motion of the
\y is
23. When a spring is stretched by 2 cm, it stores 100 J of energy. If it is stretched further by
2 cm, the stored energy will be increased by
.
24. Select the pair whose dimensions are same
25. A tuning fork makes 256 vibrations per second in air. When the velocity of sound is 330m/s,
then wavelength of the tone emitted is
26. It is possible to distinguish between the transverse and longitudinal waves by studying the
property of ’
27. Natural radioactivity was discovered by .
28. Solar eclipse will take place when
:
29. Ona stationary sail boat, air is blown from a fan attached to the boat. The boat
|
30. Supersonic plane fly with the speed
32. Explain Nuclear Fusion,
33. Explain Raman Effect.
34. Show that a particle of rest mass mo, total energy E and linear momentum P satisfies the
’ relation E? =c? P? +m3c', where c is the velocity of light in free space.
35. Two identical thin rings, each of radius, R meter are co — axially placed at distance R meter
apart. If Q: and Q: coulombs are respectively the charges uniformly spread on two rings.
| What is the work done in moving a charge q from the centre of one ring to that of the other.
36. Draw the logic circuit for the following Boolean expression.
Y =
37. In the x-ray diffraction of a set of crystal planes having d equal to 0.18nm, a first order
reflection is found to be an angle of 22°. Find the wave length of x-ray. (Given Sin22° =0.208).
38. A wave function is given by ψ(x) = A(2/L)¹⁄²[sin(πx/L) + 2 sin(2πx/L)]. Find the value of A that will normalize the wave function in the space defined by 0 ≤ x ≤ L.
81. Distinguish between Fraunhofer and Fresnel’s diffraction
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