Question # 1

1 nano farad is equal to:

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1 x 10^-12 F

1 x 10⁹F

1 x 10^-9F

1 x 10^-6F

The sound level of rustling of leave is:

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1 dB

20 dB

30 dB

10 dB

If the mass of the bob of a pendulum is increased by a factor of 3, the period of the pendulum’s motion will:

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Be increased by a factor of 2

Remain the same

Be decreased by a factor of 2

Be decreased by factor of 4

Bouncing back of light after striking the surface is called:

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Refraction

Reflection

Diffraction

Interference

With broadband information can be loaded:

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In 1 min

In 1 sec

In 1 day

In 2 days

If there is divergence of leaves by touching a body with electroscope then the body is:

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Semi conductor

Neutral

charge body

Insulator

In mathematical form of Ohm's law, "R" is:

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Resistance

Specific resistance

Resistor

Resistivity

Analogue quantity is:

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Time

Pressure

Distance

All of these

Half of radius of curvature is called:

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Focal length

Principal focus

Axis

Aperture

The minimum value of angle of deviation is called:

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Minimum angle

Incident angle

Angle of minimum deviation

None of these

The time period of simple pendulum can be calculated by:

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T = 2π√L/g

T = 2 π √m/k

T = 2 π √g/L

T = 2 π √K/m

What is the voltage across a 6Ω resistor when 3 A of current passes through it?

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2 V

9 V

18 V

36 V

Which is the most suitable means of reliable continuous communication between an orbiting satellite and Earth?

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Microwaves

Radio waves

Sound wave

any light waves

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