Question # 1

Optical fibres works on the principle of:

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Reflection

Refraction

Total internal reflection

Diffraction

If Current flowing through switch then the output is expressed as:

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0

1

-1

2

The current used in houses is:

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A.C.

Conventiona current

Current

D.C

Coulomb's law is mathematically stated as:

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F = k q1 q2/r3

F = k q2 q2 / r2

F = k q1 q2 / r

F = k q1 q2 / r2

Which statement of the following is false for primary memory?

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The base of primary memory is electronics

This is a random access memory

It gets lost when computer switches off

It is built on laser technology

The presence of a magnetic field can be detected by a

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small mass

Stationary positive charge

Stationary negative charge

Magnetic compass

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.

The character by which lound and faint sound can be distinguished is called:

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Pitch

Quality

Loudness

Intensity

Which device is used to store charge:

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Resister

Capacitor

Dielectric

Fuse

1 volt is equal to:

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JC

JC^-1

JC^-2

JC^-3

In liquids and gases the current is due to the motion of:

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Negative charges

Positive charges

Both positive and negative charges

None of these

The data stored in C.D. is.

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680 MB

650 MB

700 MB

750 MB

The angle of which prism deviates the incident ray is called:

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angle of incident

angle of reflection

angle of deviation

angle of minimum deviation

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