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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 with Only One Choice Correct
Two particles A and B, initially at rest, move towards each other under a mutual force of attraction. At the instant when the speed of A is V and that of B is 2V, the speed of the centre of mass of the system is
| (a) |
0 |
(b) |
V |
| (c) |
1.5V |
(d) |
3V |
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Chemistry |
Multiple Choice Question
Molten sodium chloride conducts electricity due to the presence of
| (a) |
free electrons |
(b) |
free ions |
| (c) |
free molecules |
(d) |
atoms of sodium and chlorine |
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Mathematics |
The area of the triangle with vertices
A(1, -1, 2), B(2, 1, -1), C(3, -1, 2) is |
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