Question # 1

Average KE of a gas molecule has:

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Direct relation with absolute temperature and inverse relation with pressure

Direction relation with both absolute temperature and pressure

Inverse relation with both absolute temperature and pressure

None of these

The concept of field theory was put forward by

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Franklin

Kepler

Oersted

Michael Faraday

Ethanol (alcohol) as a type of:

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Electric fuel

Bio fuel

Nuclear fuel

None of these

Which of the following is a characteristic of an ideal fluid?

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it is non-viscous

it is incompressible

it's motion is steady

all of the above

The SI unit of electric flux is

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Weber

Nm²C^-1

NmC^-1

Nm^-2C

During the upward motion of the projectile, the vertical component of velocity.

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Decreases

Increases

Remains constant

None of these

The diameter of an atom is of the order

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10^-125m

10^-11m

10^-10m

10^-9m

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

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800^oC

500^oC

300^oC

100^oC

None of these

Compton was awarded Nobel prize in physics in

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1921

1923

1925

1927

The basic circuit element in A.C. circuits are:

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Resistor and capacitor

Resistor and Inductor

Capacitor only

Both (B) and (C)

None of these

The fractional change in resistance per kelvin is known as

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temperature coefficient

resistance coefficient

super temperature

critical temperature

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

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1840 KeV

1/1840 KeV

1 KeV

920 KeV

The combined effect of resistance and reactance in a.c. circuit is called

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conductance

resistance

impedance

choke

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

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2100 m/s²

1400 m/s²

700 m/s²

400 m/s²

If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be

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6 ohm

4 ohm

zero ohm

1.33 ohm

The inkjet printer ejects a thin stream of:

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Water

Oil

Ink

Any of above

None of these

Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is

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45°

60°

50°

40°

Deep water almost runs still when surface water flow in rivers. What does it explains

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Magnus effect

Equation of continuity

Surface energy

Bernoulli's equation

The galvanometer can be made sensitive if the value of the factor C/BAN is

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constant

small

large

none of these

In full wave rectification, simultaneous action is that:

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Two diodes conduct and two do not.

One diode conduct and three do not.

Three diodes conduct and one does not.

All the four diodes conduct

None of these

If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is

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one ohm

one joule

one volt

one ampere

Work is a:

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Scalar quantity

Vector quantity

Base quantity

None of these

In a moving coil galvanometer, the deflecting couple depends upon

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area of the coil

number of turns of coil

value of magnetic field

all of the above

When the same object is viewed at a shorter distance, the image on the retina of the eye is _____ the so the object appears:

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Greater, smaller

Smaller, smaller

Smaller, larger

Greater, larger

There is a regular arrangement of molecules in a

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amorphous solids

polymeric solids

crystalline solids

none of them

The process in which energy is dissipated from the oscillating system is known as

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resonance

interference

diffraction

damping

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be

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40 km/h

48 km/h

50 km/h

60 km/h

1 J = ________?

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10⁷erges

10^-7erges

10⁵erges

10^-5erges

The three equation of motions are useful only for

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linear motion with increasing acceleration

line motion with uniform acceleration

linear motion with zero acceleration

linear motion with varying acceleration

When a fluid is in motion, its flow can be considered as

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turbulent

streamline

either or them

neither of them

Force is a:

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Scalar quantity

Base quantity

Derived quantity

None of these

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