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Daily Question Banks for Engineering Entrance and Board Exams
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| Qod Archive |
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| Questions |
Physics |
Multiple Choice Question
Entropy of a thermodynamic system does not change when the system is used for
(a) conduction of heat from a hot reservoir to a cold reservoir
(b) conversion of heat into work adiabatically
(c) conversion of heat into internal energy isochorically
(d) conversion of work into heat isothermally |
Chemistry |
Multiple Choice Question
Liquid-liquid sol is known as
| (a) |
aerosol |
(b) |
foam |
(c) |
emulsion |
(d) |
gel |
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Mathematics |
Multiple Choice Question
Normals at three points P, Q, R on a rectangular hyperbola, intersect at a point on the curve; the centroid of the triangle PQR is
(a) the centre of the hyperbola
(b) a focus of the hyperbola
(c) an extremity of a latus rectum
(d) none of these |
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