- A[L A T]
- B[L-1 A -1 T]
- C[L A-1 T-1]
- D[L-2 A T]
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Assertion : In practical application, power rating of resistance is not important.
Reason : Property of resistance remain same even at high temperature.
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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. |
The capacitor of capacitance 4μF and 6 μF are connected in series. A potential difference of 500 volts applied to the outer plates of the two capacitor system. Then the charge on each capacitor is numerically
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(a) 6000 C |
(b) 1200 C |
(c) 1200 μC |
(d) 6000 μC |
Ge and Si diodes conduct at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the valve of V0 changes by

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(a) 0.2 V |
(b) 0.4 V |
(c) 0.6 V |
(d) 0.8 V |
Television signals on earth cannot be received at distances greater than 100 km from the transmission station. The reason behind this is that
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(a) The receiver antenna is unable to detect the signal at a distance greater than 100 km |
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(b) The TV programme consists of both audio and video signals |
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(c) The TV signals are less powerful than radio signals |
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(d) The surface of earth is curved like a sphere |
An air bubble in sphere having 4 cm diameter appears 1 cm from surface nearest to eye when looked along diameter. If amg = 1.5, the distance of bubble from refracting surface is
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(a) 1.2 cm |
(b) 3.2 cm |
(c) 2.8 cm |
(d) 1.6 cm |
For moving ball of cricket, the correct statement about de-Broglie wavelength is
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(a) It is not applicable for such big particle |
(b) |
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(c) |
(d) |
To induce an e.m.f. in a coil, the linking magnetic flux
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(a) Must decrease |
(b) Can either increase or decrease |
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(c) Must remain constant |
(d) Must increase |