Question # 1

Image formed on a camera is:

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Real, inverted, and diminished

Virtual, upright and diminished

Virtual, upright and magnified

Real, inverted and magnified

An object gains excess negative charge after being rubbed against another object, which is:

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Neutral

Negatively charged

Positively charged

Either, a, b or c

electroscope can also be charges by the process of:

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electrostatics

electricity

convection

conduction

If current is flowing from bottom end to the top end in a wire, according to right hand rule the direction of line of forces would be:

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Anti-clock wise

Clock wise

Left and Right

Along the conductor.

Hard disk is made of:

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Aluminium

Copper

Iron

Plastic

Waves transfer:

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Energy

Wavelength

Velocity

frequency

Which radiations are free of effect of electric and magnetic field?

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Alpha

Beta

Gamma

Alpha and beta

The device which converts digital quantities into analog quantities is called:

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ADC

DAC

ACD

CAD

What is the direction of the magnetic field lines inside a bar magnet?

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From north pole to south pole

From south pole to north pole

From side to side

There are no magnetic field lines.

According to Ohm's law V =________

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I²R

IR²

IR

I/R

Which is the unit of energy:

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KWh

Electron volt

Joule

All of above

The totally reflectiing prism one angle is of:

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45^o

90^o

180^o

120^o

If one of the resistors in a parallel circuit is removed, the total resistance will be:

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Doubled

Decreased

Increased

Remain same

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