Question # 1

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

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Current

Power

Resistance

both a and b

Half of radius of curvature is called:

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Focal length

Principal focus

Axis

Aperture

What happens to the intensity of the brightness of the lamps connected in series as more and more lamps are added?

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Increases

Decreases

Remains the same

Can not be predicted

The current used in houses is:

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A.C.

Conventiona current

Current

D.C

The unit of (ρ) in formula R=ρ.L/a is______________.

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Ω

Ω-m

Ω-m²

Ω-m^-2

Image formed on a camera is:

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Real, inverted, and diminished

Virtual, upright and diminished

Virtual, upright and magnified

Real, inverted and magnified

The center of curved surface of spherical mirror is called:

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Focus

Axis

Centre

Pole

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

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2Ω

4Ω

8Ω

12Ω

We can distinguish between the notes of a piano and flute due to ………… of sound.

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Loudness

Pitch

Quality

Intensity

When resistance are connected in series the current passing through them is .

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Different

Zero

The same

None of these

The mirror whose inner surface is reflecting is called:

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Concave mirror

Convex mirror

Mirror

Lens

Resistance of conductor is directly proportional to:

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Length

Pressure

Area

All of these

Mathematical formula of electromotive force (e.m.f) is:

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E = W/Q

E = Q/W

E = WQ

E = W2Q

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Physics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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