Question # 1

Which quantity has different dimension:

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Work

Pressure

Energy

Torque

The terms phase difference and path difference are:

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Same

Different

Equal

None of these

Referring to above figure, current in coil P falls from its maximum value to zero:

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At the instant the switch is closed

At the instant the switch is opened

When switch is kept open

When switch is kept closed

None of these

The direction of the linear momentum is the direction of

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speed

velocity

weight

none of them

Amplitude in SHM is equivalent to ______ in circular motion:

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Diameter

Radius

Circumference

None of these

Surface tension of water is due to

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Inter molecular attractions

Inter molecular spaces

Inter molecular repulsion

None of above

A body can have constant velocity when it follows:

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A circular path

A rectilinear path

Trajectory of a projectile

None of these

The information from far side of the universe are gathered by:

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Radio telescope

Microscope

Telescope

Spectro scope

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

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decreases

increases

becomes zero

none of them

The inkjet printer ejects a thin stream of:

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Water

Oil

Ink

Any of above

None of these

Astrophysics is a branch of physics, which deals with:

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Sub-atomic particles

Stars and galaxies

Light and sound

Music

The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is

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Q=V/C

Q=C/V

Q=1/2CV

Q=CV

Work is a scalar product of

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Force, Velocity

Velocity, Displacement

Force, Displacement

Force, Momentum

A device used to measure the speed of liquid flow is known as

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barometer

speedometer

sphygmomanometer

venture-meter

Strength of magnetic field is measured in SI units, in:

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N

N/Am

Am/N

Nm/A

None of these

The total energy of spring mass system is

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zero

changing with time

constant

none of them

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

The product of force and time is called

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acceleration

linear momentum

angular momentum

impulse

If a ball comes back to its starting point after bouncing off the wall several times, then its

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total displacement is zero

average velocity is zero

none of them

both of them

In an A.C circuit with resistor only, the current and voltage have a phase angle of

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90°

0°

180°

none of these

The efficiency of petrol engine is usually not more than 25% to 30% because of

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friction

heat losses

both of them

none of them

The restoring force is ______ and opposite tot he applied force within ______

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Equal, Elastic limit

Different, The walls of the laboratory

Different, Elastic limit

None of these

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

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0.1 m

0.2 m

0.98 m

Full length of the capillary tube

If water in a closed bottle is taken up to the moon and opened, the water gets

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Freeze

Boiled

Dissociated into O₂and H₂

Evaporated

N s m^-2is unit of:

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Drag force

Pressure

Surface tension

Coefficient of viscosity

The electrode connected with the positive terminal of the current source is called

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cathode

anode

electrolyte

position

In rotational motion, analogue of force F us called:

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Couple

Torque

Mass

Moment of intertia

Which branch of physics deals with the structure and properties of solids

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Atomic Physics

Plasma Physics

Molecular Physics

Solid state physics

The number of all the protons and neutrons in a nucleus is known as

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atomic number

mass number

charge number

none of these

Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:

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50

100

150

200

250

At the temperature, a body emits radiation which is principally

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of long wavelengths in the visible region

of long wavelengths in the invisible infrared region

of short wavelength in invisible ultraviolet region

none of these

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