- AStraight lines, straight lines.
- BStraight lines, curved lines.
- CCurved lines, straight lines.
- DCurved lines, curved lines.
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In hydrogen atom, electron makes transition from n=4 to n=1 level. Recoil momentum of the H atom will be
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(a) 3.4 |
(b) 6.8 |
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(c) 3.4 |
(d) 6.8 |
Assertion : A person touching a high power line gets stuck with the line.
Reason : The current carrying wires attract the man towards it.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
Advantage of optical fibre
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(a) High bandwidth and EM interference |
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(b) Low bandwidth and EM interference |
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(c) High band width, low transmission capacity and no EM interference |
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(d) High bandwidth, high data transmission capacity and no EM interference |
Three capacitors each of capacity 4μF are to be connected in such a way that the effective capacitance is 6 μF. This can be done by
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(a) Connecting them in parallel |
(b) Connecting two in series and one in parallel |
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(c) Connecting two in parallel and one in series |
(d) Connecting all of them in series |