Question # 1

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

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turbulent

streamline

either or them

neither of them

A thermistor is a resistor which is:

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Light Sensitive

Heat Sensitive

Sound Sensitive

All of these

None of these

In a transistor, the central region is called

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collector

emitter

base

none of them

SI unit of frequency is

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second

hertz

revolution

vibrations/sec

The law of conservation of mass gives us the

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equation of continuity

Bernoulli's theorem

both of them

none of them

The domains are of macroscopic size of the order of

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centimeters

meters

millimeters

nanomneters

Amperean path is a:

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Closed path

Rectangular path

Circular path

Any of above

Broken path

The curve representing an isothermal process is called

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adiabat

isotherm

fixed temperature

none of them

Most practical applications of electricity involve

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Charges at rest

Charges in motion

Electrons at rest

Atoms in motion

Molecules in motion

The work done in moving a body between two points in a conservative field is independent of the

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Direction

Force applied

Path followed by the body

Power

Balmer series was identified in:

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1685

1785

1885

1985

1585

The earliest heat engine was

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petrol engine

diesel engine

electric engine

steam engine

The motional e.m.f depends upon the

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Length of a conductor

Strength of a magnet

Speed of the conductor

All of the above

Energy is not carried by

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Transverse progressive waves

Longitudinal vibration

Stationary waves

Electromagnetic

Amplitude in SHM is equivalent to_____ in circular motion:

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Diameter

Radius

Circumference

None of these

The work performed on an object does not depend on:

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Force applied

Angle at which force is inclined to the displacement

Initial velocity of the object

Displacement

The ratio of linear stress/linear strain is called as

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Yong's modulus

Bulk modulus

Shear modulus

Modulus

The special theory of relatively treats the problems involving:

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Inertial frames of reference

Non-inertial frames

Non-accelerated frame

Botha (A) and (C)

Both (B) and (C)

The energy of a photon is represented by

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h/c²

h/T

hc²

hf/c²

In an ideal gas, the molecules have:

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Kinetic energy only

Potential energy only

Both KE and PE

None of these

The focal length of convex lens having magnifying power of 5.55 is:

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5.5 cm

5 cm

4.5 cm

6 cm

The wave form of SHM is

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Pulsed wave

Square wave

Triangular waved

Sine wave

A body moving with an acceleration of 5 m/sec²started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

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150 m

250 m

350 m

400 m

The velocity of a projectile is maximum

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at the point of projection

just before striking the ground

at none of them

at both of them

The first shell near the neucles is

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L-shell

X-shell

N-shell

M-shell

Laser is a beam of:

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Visible light

Infra red light

Ultra violet light

Violet light only

yellow light only

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

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Nitrogen

Hydrogen

Lead

Oxygen

Krypton

The Nobel Prize on the explanation of photoelectric effect was awarded to:

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Max. Planck

Maxwell

Bohr

Rutherford

None of these

The conduction band in a solid

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may be empty

cannot be empty

should be filed

all of them

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

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Double

Remains constant

Half

None of these

0.1 kg mass will be equivalent to the energy

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9 x 10¹⁵J

5 x 10⁸J

6 x 10¹⁶J

9 x 10^-16J

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