Question # 1

For the conversion of galvanometer into voltmeter, we connect a

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small resistance in series with galvanometer

small resistance in parallel with galvanometer

high resistance in parallel with galvanometer

high resistance series with galvanometer

The SI units of momentum is

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kg m s^-2

kg ms

kg m s²

N-s

G.P. Thomson observer experimentally that electrons and neutrons possess

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particle-like properties

wave-like properties

neither particle nor wave like properties

none of these

Whenever a covalent bond breaks, it creates:

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An electron

A hole

An electron-hole pair

A positron

All of these

Rate of flow can be expressed in

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litre/sec

litre-sec

sec/litre

sec/litre-m

The electric intensity at infinite distance from the point charge will be

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Infinite

Positive

Zero

Negative

A unit cell is smallest basic structure which is:

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One dimensional

Two dimensional

Three dimensional

Four dimensional

None of these

If the time period a simple pendulum is 2 s, its frequency would be

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2 Hz

1.5 Hz

1.0 Hz

0.5 Hz

An emf is set up in a conductor when it:

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is kept in a magnetic field

is kept in a electric field

Move across a magnetic field

Both (A) and (B)

None of these

Electromagnetic waves emitted by hot bodies are called:

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Photoelectrons

Alpha rays

Thermal radiation

None of these

A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec²in this case, find radius of the circular path:

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1 m

5 m

10 m

15 m

The basic circuit element in D.C. circuit is:

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A capacitor

A resistor

An inductor

Both (A) and (C)

Both (A) and (B)

The space around the earth within which it expects a force of attraction on other bodies is known as:

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Nuclear field

Conservative field

Electric field

Gravitational field

Glass and high carbon steel are the examples of

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brittle substances

ductile substances

plastic substances

elastic substances

In a voltmeter the conduction takes place due to

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Electrons only

Holes only

Electrons and holes

Electrons and ions

The portion of the water above its mean level forms a:

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Crest

Trough

Both A and B

None of these

Which of the following represents an electric current?

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C^-1

CS^-1

J.S^-1

dynes^-1

The chemical behaviour of an atom is determined by

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binding energy

atomic number

mass number

number of isotopes

A person starts his journey from a point 0, travels 4 Km SW, then 4 Km NW, and finally 4 Km north-east. At what distance is he now from point 0?

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0 Km

4 Km

8 Km

12 Km

Op-amp has been discussed as comparator of:

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Distances

Voltages

Velocities

Magnetic fields

Both (A) and (C)

A carnot cycle consists of

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One step

two step

three steps

four steps

Time period of simple pendulum is independent of

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length

mass

acceleration due to gravity

none of them

A 60 W bulb operates on 220 V supply. The current flowing through the bulb is

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11/3 A

3 A

3/11 A

6

In case of streamed lined flow of liquid, the loss of energy is

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Maximum

Minimum

Infinite

equal to what is in turbulent flow

Satellites are held in orbits around Earth by its:

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Gravitational field

Magnetic field

Own orbital motion

Own spin motion

The flow of an ideal fluid is

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streamline flow

incompressible flow

non-viscous

all of the above

The body passing a viscous medium affected by:

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One force only

Two forces only

Four forces

None of these

The spectrum emitted from hydrogen filled discharge tube is:

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Line spectrum

Discrete spectrum

And spectrum

Absorption spectrum

Both (A) and (B)

Self inducede e.m.f. is also called

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Motional e.m.f.

Thermistor

Electrostatic induction

Back e.m.f

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

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

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Nitrogen

Hydrogen

Lead

Oxygen

Krypton

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