Question # 1

Current is equal to:

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IR²

CV

Q/t

IR

The S.I unit of Spring constant is:

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Nm

N

Nm-1

Ns

Mathematical formula of capacitance of a capacitor is:

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C = QV

C = Q/V

C = V/Q

C = V2/Q

The half life of radium 226 is

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1600 year

1610 years

1620 years

1630 years

Which process is involved to store charge in capacitors:

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Rubbing

Electrostatic induction

Conduction

Electromagnetic induction

Speed of light in air is ms^-1

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3 x 10⁸

3 x 10¹¹

3 x 10⁵

340

AND operation is represented by:

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Dot (.)

Addition (+)

Division (÷)

Minus (-)

The waves in which particle of the medium vibrate parallel to the direction of waves are called

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Longitudinal waves

Transverse waves

Electromagnetic waves

both b and c

A group of instructions or a program which guides hardware to do work is called:

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Hardware

Micro processor

Memory

Software

The resistance of conductors is due to:

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Protons

Fixed atoms

Molecules

Neutrons

The temperature at the centre of sun is.

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10 million k

20 million k

30 million k

35 million k

The wave properties

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Reflection

Refraction

Diffraction

All of these

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

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

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