Question # 1

A resistance used in voltmeter is called

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shunt resistance

high resistance

low resistance

zero resistance

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

Which of the following is a state variable

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entropy

pressure

volume

all of them

Biomass includes:

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Crop residue

Natural vegetation

Animal dung

All of these

Electron volt is the unit of

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Potential difference

Energy

Resistance

Capacitance

Which of the following waves are more energetic

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radio waves

infrared waves

ultraviolet

γ-rays

An ideal choke (used along with fluorescent tube) would be

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A pure resistor

A pure capacitor

A pure inductor

A combination of an inductor and a capacitor

The time of flight of a projectile motion equal to

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half of the time to reach maximum height

twice the time to reach maximum height

one fourth of time to reach maximum height

time to reach maximum height

Most of the electrons in the base of an NPN transistor flow

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Out of the base lead

Into the collector

Into the emit

Into the base supply

According to the de-Brogile relation, an object of large mass and ordinary speed has

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very small wavelength

very large wavelength

very small frequency

all of these

1 amu is equal to.

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1.66 x 10^-24kg

1.66 x 10^-19kg

1.66 x 10^-24kg

1.66 x 10^-27kg

A radioactive nucleus can emit:

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Electron

𝛼 particles

Positron

Any of these

In diesel engine no sparking device and no need of

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Heavy current unit

Spark plug

Instant starting

None of these

The SI units of acceleration is

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LT

LT^-1

LT^-2

L²T^-2

A thin layer of oil on the surface of water looks colored due to:

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Diffraction of light

Reflection of light

Dispersion of light

Interference effect of light

The weight of an object is defined as

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the effect of the gravitational field on an object

force acting per unit mass

the gravitational force exerted on that object

the gravitational field exerted on that object

If momentum is increased by 20% then K.E. increases by

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44%

55%

66%

77%

Bernoulli's equation is based upon law of conservation of

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Mass

Momentum

Energy

None

The materials which are used in selective absorption method to polarize the light are

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chronic substances

organic substances

inorganic substances

diachronic substance

In the theory of dimensional analysis, heat may be properly represented by:

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ML²T^-2

MT^-2

ML^-1T^-1

None of these

When V₁is approximately zero then Bernoulli's equation reduces to

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Torricelli's theorem

Venturi relation

Equation of continuity

None of these

Acceleration produced in a body by a force varies

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inversely as the applied force

directly as the mass of the object

directly as the mass of the body

none of them

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