Question # 1

According to ohm’s law V= :

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I²R

IR²

IR

I/R

In a vacuum all electromagnetic waves have the same:

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Speed

frequency

amplitude

wavelength

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

The diameter of spherical mirror is called:

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Curvature

Aperture

Sphere

Both a and b

When did Michael Faraday discover Electromagnetic induction?

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1841

1831

1821

1811

To see from submarine and the ship at the surface of water, we use:

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Telescope

Microscope

Periscope

Prism

What is the power rating of a lamp connected to a 12 v source when it carries 2.5 A?

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4.8 W

14.5 W

30 W

60 W

Two uncharged objects A and B are rubbed against each other. When object B is placed near a negatively charged object C, the two objects repel each other. Which of these statements is true about object A.

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Remains uncharged

Becomes positively charged

Becomes negatively charged

Unpredicatable

The waves in which particles of the medium vibrate perpendicular to the direction of waves are:

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Electromagnetic waves

Sound waves

Both a and b

Transverse waves

The distance of the object from the mirror is represented by :

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q

p

m

F

Diffraction of wave can be observed clearly only when the size of slit or obstacle is nearly__________ to the wavelength of the wave:

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Two times

Equal

Four times

None of these

Angle opposite to the base of triangle of prism is called:

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angle of incidence

angle of refraction

angle of prism

emerging angle

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Physics 10th Class English Medium Online Test MCQs With Answers

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