Question # 1

What is the current is a 2 x 10⁶ohm resistor having a potential difference of 2 x 10³volts?

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10^-1A

10^-2A

10^-4A

1 mA

When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called

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energy bands

energy shells

states

all of them

The volume of a gas will be double of what it is at 0°C (pressure remaining constant) at

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546 K

273 K

546°C

273°C

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5μF

10μF

3μF

6μF

A beam of electrons is provided by an

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electron gun

Suppray

Injection

None of these

A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that

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water contains hydrogen atoms, air does not

water molecules are smaller than molecules in the air

surface tension of the water prevents it from

A mass difference of 0.0012 u is equivalent to and energy of:

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0.5 Me V

1.13 MeV

5.13 MeV

1.13 keV

1.13 eV

Charge on neutron is

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1.6 x 10^-19C

zero

-1.6 x 10^-19C

1.2 x 10^-19C

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

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equal to the resonant frequency

slight different from the resonant frequency

greatly different from the resonant frequency

any one of them

If the distance between two charges is doubled, the force between them will become

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Double

Half

Three times

One fourth

One third

While deriving equation of pressure by kinetic theory of gases, we take into account:

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Only linear motion of molecules

Only rotational motion

Only vibratory motion

All of these

1 cal = __________

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11.184Joule

2.184Joule

3.184Joule

4.184Joule

The splitting of white light into several colors on passing through a glass prism is due to

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Refraction

Reflection

Interference

Diffraction

A one microfarad capacitor of a TV is subjected to 4000 V potential difference The energy stored in capacitor is

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8 J

16 J

4 x 10^-3 J

2 x 10^-3 J

Pull of the earth on a mass of 20 kg on the surface of earth is

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19.6 N

1960 N

196 N

None of these

Conventionally, clock-wise torque is taken as

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Negative

Positive

Zero

None of these

The body moving with uniform velocity may be

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in equilibrium

accelerating

changing in direction

changing in magnitude

When three forces acting at a point are in equilibrium then

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Each force is numerically equal to the sum of the other two

Each force is numerically greater than the sum of the other two

Each force is numerically greater than the difference of the other two

None of the above

In a couple, the resultant of two forces is

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2F

F

F / 2

Zero

Which row is correct for fission and for fusion?

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Produces larger nuclei

Produces smaller nuclei

Equal vectors are said to be equal if by have

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Same magnitude and direction

Same magnitude and opposite

No position of initial points

Direction a and b

Bulk modulus for water is

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2.2

4.5

6.2

7.3

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