2022
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Jun 3, 2022
(a) 0.3 rad/s (b) 5.3 rad/s (c) 10.3 rad/s (d) 89.3 rad/s Ans. c (13)
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Jun 3, 2022
a. Frenkel defect b. Sohottky defect c. Intersitital defects d. F- centre Ans. d Explanation : When electorns are trapped...
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Jun 3, 2022
(a) Non zero constant (b) Infinite (c) Zero (d) Can not be predicted Answer-c (22)
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Jun 3, 2022
(a) 0.3 rad/s (b) 5.3 rad/s (c) 10.3 rad/s (d) 89.3 rad/s Ans. c (7)
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Jun 3, 2022
a. F centre b. Frenkel c. Sohottky d. Interstital Ans. c Explanation : During the schottkky defects same number of...
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Jun 3, 2022
a. Schotky defect b. Frenkel defect c. Stoichiometric defect d. F- centres Ans. d Explanation : F- centres are the...
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Jun 3, 2022
(a) Zero (b) Infinity (c) 2×1010 N/m2 ...
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Jun 3, 2022
Moment of inertia of uniform rod of mass M and length L about an axis through its centre and perpendicular...
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Jun 3, 2022
(a) r1 2 /r2 2 ...
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Jun 3, 2022
a. Frenkel defect b. Interstitial positions c. F- centres d. Schottky defects Ans. c (10)
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Jun 3, 2022
a. Interstitial defect b. Valency defect c. Frenkel defect d. Schottky defect Ans. c (9)
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Jun 3, 2022
The Young’s modulus of the material of a wire is 6×1012 N/m2 and there is no transverse strain in it,...
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Jun 3, 2022
A smooth uniform rod of length L and mass M has two identical beads of negligible size, each of mass...
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Jun 3, 2022
(a) Shearing (b) Longitudinal (c) Volume ...
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Jun 3, 2022
a. Nucleus defects b. Non-crystal defects c. Crystal defects d. None of these Ans. c Explanation : Both are stoichiometric...
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Jun 3, 2022
Two discs of moment of inertia I1 and I2 and angular speeds ω1 and ω2 are rotating along collinear axes passing...
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Jun 3, 2022
a. Increases b. decreases c. Does not change d. Changes Ans. c Explanation : Since no ions are missing from...
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Jun 3, 2022
(a) Too less (b) Greater than all matters (c) Less than all matters (d) Zero Answer-b (11)
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Jun 3, 2022
19. The pressure applied from all directions on a cube is P. How much its temperature should be raised to...
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Jun 3, 2022
a. Schottky defects have no effect on the density of crystalline solids b. Frenkel defects decrease the density of crystalline...
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Jun 3, 2022
The position of a particle is given by : →r = (^i+2^j-^k) and momentum →p =(3^i+4^j-2^k) . The angular momentum...
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Jun 3, 2022
21. For a constant hydraulic stress on an object, the fractional change in the object’s volume (ΔV/V) and its bulk...
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Jun 3, 2022
a. Electron are held in the voids of crystals b. F- centre produces colour to the crystal c. Conductivity of...
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Jun 3, 2022
A circular platform is free to rotate in a horizontal plane about a vertical axis passing through its center. A...
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Jun 3, 2022
a. A 2 BO4 b. A 2 B 2 O c. A B2 O4 d. A 4 B2 O Ans. c (36)
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Jun 2, 2022
A2 B 2 has the hcp lattice. Which atom forms the hcp lattice and what fraction of tetrahedral voids is occupied...
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Jun 2, 2022
20. The pressure of a medium is changed from 1.01 × 105 Pa to 1.165 × 105 Pa and change...
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Jun 2, 2022
(a) Young’s modulus (b) Coefficient of volume elasticity (c) Modulus of rigidity (d) Poisson’s ratio Answer-b (12)
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Jun 2, 2022
(a) w (b) w/2 (c) 3w/4 (d) w/4 Ans. d (18)
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Jun 2, 2022
(a) Mω (b) (M+4m)ω/M (c) (M-4m)ω/M+4m (d) Mω/4m Ans. a (9)
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Jun 2, 2022
O2- ions where half the octahedral voids are occupied by Al 3+ and one eight of the tetrahedeal voids are occupied...
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Jun 2, 2022
(a) v/L (b) 2v/L (c) v/3L (d) v/4L Ans. a (12)
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Jun 2, 2022
(a) Zero (b) Unity (c) Infinity ...
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Jun 2, 2022
a. 2 b. 4 c. 6 d. 8 Ans. d (16)