Question # 1

The gate, which changes the logic level to its opposite level is called

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NOR gate

AND gate

OR gate

NOT gate

The wavelength associated with the protons moving at speed of 40 m/s is.

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7.20 nm

9.02

15.7 nm

17.3 nm

Selenium is a

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Insulator

Photoconductor

Conductor

First insulator then conductor

The name of the scientist who noted that a compass needle was deflected when placed near the current carrying conductor

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Henry

Faraday

Coloumb

Oersted

Terminal potential difference is greater than emf of the cell when

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Circuit is open

Circuit is closed

small battery is charged by bigger battery

None of these

The charge number of Ba is.

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197

141

56

85

The AC system is preferred to DC system because:

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AC voltage can be easily changed in magnitude

DC motor angular velocity is affected badly

High voltage AC transmission is less efficient

Domestic appliance require AC voltage for their operation

Which material should be inserted between the plates of a capacitor in order to increase its capacitance.

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Copper

Mica

Iron

Tin

When Ohm meter gives full scale deflection it indicates.

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Zero resistance

Infinite resistance

Small resistance

Very High resistance

Domains are existed in

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Ferromagnetic materials

Paramagnetic materials

Semi conductors

Diamagnetic materials

At resonance, the behavior of R-L-C series circuit is.

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Resistive

Capacitive

Inductive

Modulative

The photon with energy greater than 1.02 MeV can interact with matter as.

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Photoelectric effect

Compton effect

Pair production

annihilation of matter

If the north pole of a magnet moves away from a metallic ring

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Clockwise

Anticlockwise

First clockwise and then anticlockwise

None of above

The quantity of U in the naturally occurring uranium is.

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0.2%

0.3%

0.7%

0.4%

The color code of "Green"

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8

3

5

7

The photo copying process is called

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Xerography

Inkjet Printer

Both (a) and (b)

None of these

The Kirchhoff 1^st rule is manifestation of:

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Law of conservation of mass

Law of Conservation of charge

Law of conservation of energy

None of above

The current flowing through each resistor of equal resistance in parallel combination is.

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Same

Different

Zero

Infinite

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