
- Atuned filter
- Blow pass filter
- Chigh pass filter
- Drectifier

Explanation:
The circuit shown in figure has capacitor and inductor in parallel so their will be current flowing continuously with energy being transformed into electrical in capacitor and magnetic in inductor, hence it is a tuned filter.
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A simple pendulum with bob of mass m and conducting wire of length L swings under gravity through an angle 2θ. The earth’s magnetic field component in the direction perpendicular to swing is B. Maximum potential difference induced across the pendulum is

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(a) 2BL sin |
(b) BL sin |
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(c) BL sin |
(d) 2BL sin |
Assertion : The temperature coefficient of resistance is positive for metals and negative for p-type semiconductor.
Reason : The effective charge carriers in metals are negatively charged whereas in p-type semiconductor they are positively charged.
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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. |
In the circuit shown below, The reading of the voltmeter V is
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(a) 12 V |
(b) 8 V |
(c) 20 V |
(d) 16 V |
Match the List I with the List II from the combinations shown
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(I) |
Presbiopia |
(A) |
Sphero-cylindrical lens |
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(II) |
Hypermetropia |
(B) |
Convex lens of proper power may be used close to the eye |
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(III) |
Astigmatism |
(C) |
Concave lens of suitable focal length |
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(IV) |
Myopia |
(D) |
Bifocal lens of suitable focal length |
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(a) I-A; II-C; III-B; IV-D |
(b) I-B; II-D; III-C; IV-A |
(c) I-D; II-B; III-A; IV-C |
(d) I-D; II-A; III-C; IV-B |
The ratio of the speed of the electron in the first Bohr orbit of hydrogen and the speed of light is equal to (where e, h and c have their usual meanings)
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(a) 2πhc/ |
(b) |
(c) |
(d) 2π |