Question # 1

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

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Zero

0.5Ω

1.1Ω

5.0Ω

When the atomic particle are moving with velocities approaching that of light:

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Newton's laws become valid

Relativistic effects become prominent

Botha(A) and (B) are valid

Neither (A)nor (B)

There mass becomes zero.

The value of viscosity of a fluid is dependent on (at constant temperature)

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the fluid itself

the fluid and its container

anything in contact with the fluid

all of the above

The most suitable material for permanent magnet is

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cobalt

iron

steel

alaminium

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

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(i) and (ii)

(ii) and (iii)

(iii) and (iv)

Compton studied the scattering of x-rays by loosely bound electrons from:

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NaCl crystal

Graphite crystal

Zirconia

Copper crystal

None of these

magnetic field is a:

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Vector quantity

Scalar quantity

Scalar as well as scalar quantity

Any of (A) or (B)

Neither (A) nor (B)

The chemical properties of an element depends upon the number of

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electron

position

photons

neutrons

A weakly damped system has fairly

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sharp resonance curve

flat resonance curve

both of them

none of them

A full-scale deflection is obtained in a galvanometer with a current of few

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ampere

volts

milliampere

ohm

Micheal Faraday and joseph Henry belong respectively to:

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USA and England

England and France

England and USA

USA and France

None of these

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

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Low orders

Middle orders

High order

None of these

If the acceleration due to gravity is 10 ms^-2 and the units of length and time are changed to kilometer and hour respectively,the numerical value of acceleration is

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360000

72000

36000

129600

The rectangular components of force 5 dyne are

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3 and 4 dyne

2.5 and 25 dyne

1 and 2 dyne

2 and 3 dyne

The expression F x t is called impulse if the time 't' is

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zero

very large

very small

infinite

In YDS experiment using white light

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Colored fringes will be obtained

No fringes will be observed

Alternative bright and dark fringes will be seen

None of these

According to the first condition for equilibrium, the vector sum of all the forces acting on a body must be equal to

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The maximum value

The minimum value

A negative value

Zero

Nm^-2is approximately called:

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Telsa

Weber

Pascal

Watt

Guass

The direction of a vector in a space is specified by

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One angle

Two angles

Three angles

Cannot be specified

The value of the orbital radius measured for the centre of the Earth

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4.29 × 10⁵ km

4.23 × 10⁶ km

4.23 × 10⁴ km

4.23 × 10⁶ km

At any point on the right bisector of the line joining two equal and opposite charges

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At electric field is zero

The electric potential decreases with increasing distance from the centre

The electric potential is zero

The electric field is perpendicular to the line joining the charges

Who confirm the wave theory of light ?

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Newton

Michelson

Newton

Thomos Young

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