Question # 1

If the field is stronger than lines of force are to each other:

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Far away

Separated

Closer

No effect

A data storage device is.

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Printer

Hard disk

Monitor

CPU

The line which passes through pole of the mirror and center of curvature is called principal:

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axis

Focus

Line

None of these

When resistances are connected in series the current passing through them is:

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Different

Zero

The same

None of these

The unit of intensity of sound:

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Wm^-1

Wm^-2

Wm

Wm²

The water waves obey the laws of:

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Reflection

Refraction

Diffraction

All of these

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

To hear echo, the distance between the observer and the obstacle is 17m then how much distance will the sound travel?

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60m

54m

17m

34m

The temperature at the centre of sun is.

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10 million k

20 million k

30 million k

35 million k

Concave mirror formula is given by:

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R = 2r

sin<i/sin<r

1/f=1/p+1/q

1/f=1/p-1/q

Which is the most suitable means of reliable continuous communication between an orbiting satellite and Earth?

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Microwaves

Radio waves

Sound wave

any light waves

The relation between v,f andλ of a wave is:

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vf=λ

fλ = v

vλ =f

v=λ/f

Which of the following is an insulator:

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Copper

Iron

Silk

Silver

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Physics 10th Class English Medium Online Test MCQs With Answers

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