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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 Two or More Choices Correct
In which of the following cases do we obtain a spherical wavefront?
(a) Sunlight focussed by a convex lens
(b) Light diverging from a straight slit
(c) Light emitted by a point source in an isotropic medium
(d) A parallel beam of light reflected from a plane mirror |
Chemistry |
Multiple Choice Question
The compound that is not a Lewis acid is
| (a) |
BF3 |
(b) |
AlCl3 |
(c) |
BeCl2 |
(d) |
SnCl4 |
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Mathematics |
| The lines 3x - 4y + 4 = 0 and 6x - 8y - 7 = 0 are tangents to the same circle. The radius of this circle is ............... |
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