Question # 1

In totally reflecting prism one angle is of:

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45°

90°

180°

120°

The logical operation performed by this gate is:

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AND

NOR

NAND

OR

The half -life of carbon is

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5730 years

5700 years

5720 years

572 years

Which is an example of a longitudinal wave:

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Sound wave

Light wave

Radio wave

Water wave

Which type of energy is converted into mechanical energy in the D.C. Motor.

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Magnetic energy

Heat energy

Electrical energy

Chemical energy

The S.I unit of electric potential is:

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Watt

Joule

Coulomb

Volt

The A.C. used in our houses has frequency _____ cycle/sec

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60

30

50

130

Ultrasound waves carry energy:

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Less

More

Equal

None of these

The colour of live wire is:

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Black or blue

Green or yellow

White or grey

Red or brown

The step-up transformer

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Increases the input current

Increase the input voltage

Has more turns in the primary

Has less turns in hte secondary coil

AND operation is represented by:

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Dot (.)

Addition (+)

Division (÷)

Minus (-)

An object is placed 6 cm away in front of a concave mirror that has 10 cm focal length. Determine the location of the image:

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-5 cm

-10 cm

-15 cm

-20 cm

Mathematical formula of spring constant is:

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F/x

X/F

F/t

F/m

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10th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers

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