Question # 1

The nuclear model of atom was proposed by

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J.J Thomson

E.Rutherford

Neil Bohr

Summerfield

Quantity that remains unchanged in a transformer is

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Voltage

Current

Frequency

None of these

A person standing near the track of a fast moving train has tendency to fall towards it because of

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Vibration due to motion of train

Gravitation force of attraction between person and trains

The high speed of train

Some other effect

At 0° K which of the following properties of a gas will be zero?

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Kinetic energy

Potential energy

Vibrational enegy

Density

How much water a pump of 2kW can raise in one minute to a height of 10 m. take g = 10 m/s²?

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1000 liters

1200 liters

100 liters

2000 liters

An ideal choke (used along with fluorescent tube) would be

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A pure resistor

A pure capacitor

A pure inductor

A combination of an inductor and a capacitor

Which one of the following is a simple harmonic motion?

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Wave moving through a string fixed at both ends.

Earth spinning about its own axis

Ball bouncing between two rigid vertical walls

Particle moving in a circle with uniform speed.

When we apply reverse bias to a junction diode it

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Lowers the potential barrier

Raises the potential barrier

Increase the majority carrier current

Decrease the majority carrier current

A force of 10N is acting along y-axis its component along x-axis is

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10N

20N

100N

Zero N

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