Question # 1

The diameter of spherical mirror is called:

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Curvature

Aperture

Sphere

Both a and b

A conductor of electric current is:

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Wood

Rubber

Plastic

Copper

The unit of resistance is:

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Ω-m

Ω

V

C

Which wire has lowest resistance?

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Thick wire

Thin wire

Very thin wire

All

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 characteristics of sound by which we can distinguish between two sounds of same loudness and pitch is called.

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Intensity

Quality

Loudness

Pitch

The critical angle for a beam of light passing from water into air is 48.8 degrees. This mean that all light rays with an angle of incidence greater than this angle will be:

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Absorbed

Totally reflected

Partially reflected and partially transmitted

Totally transmitted

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

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Loudness

Pitch

Quality

Intensity

According to Ohm's law V =________

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I²R

IR²

IR

I/R

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

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Ω

Ω-m

Ω-m²

Ω-m^-2

Resistance of conductor is directly proportional to:

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Length

Pressure

Area

All of these

Battery converts chemical energy into which energy:

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Mechanical

Electrical

Thermal

None of these

Electric potential and e.m.f.

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are the same terms

are the different terms

have different units

both b and c

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

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