Question # 1

To see stomach problems we use:

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Gastroscope

Bronchoscope

Cystoscope

All of these

A current carrying conductor produces a field around it is called:

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Electric field

Magnetic field

Both a and b

None of these

Electric potential and e.m.f.

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are the same terms

are the different terms

have different units

both b and c

When a potential of 10 volt is applied across a conductor, a current of 5 miliampere flows through it, the resistance of the conductor will be:

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200 ohm

2000 ohm

0.2 ohm

0.002 ohm

Which is not an e.m.f source:

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Generator

Solar cell

Battery

Rheostat

Sound waves having frequency lower than 20 Hz are called:

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Ultrasonic

Infrasonic

Audible

Echo

The equivalent resistance of a parallel combination is:

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Equal to sum of all resistance

Is greater than the largest resistance of combination

Is smaller than the smallest resistance of combination

All of these

Which type of capacitor is cylindrical in shape:

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Paper capacitor

Mica capacitor

Variable capacitor

Plates capacitor

The sound waves are the example of:

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Longitudinal waves

Transverse waves

Electromagnetic waves

x-rays

Critical angle for diamond is:

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60^o

24^o

26^o

49^o

Which we double the voltage in a simple electric circuit. We double the

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Current

Power

Resistance

both a and b

How does sound travel from its source to your ear:

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By changes in air pressure

By vibration in wires or strings

By electromagnetic waves

By infrared waves

The half life of plutonium²³⁶Pu₉₄is:

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2.00 years

2.35 years

2.79 years

2.85 years

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