Question # 1

Electric field lines emerge from the charge in:

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One dimension

Two dimensions

Three dimensions

Four dimensions

None of them

Which one is related to angular motion:

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Moment of a force

Moment of inertia

Moment of momentum

None of these

The electric intensity outside the two oppositely charged parallel metal plates is

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Maximum

Minimum

Zero

Infinite

At constant temperature, if the density of the gas is increased, its pressure will:

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One kg of a substance

Unit volume of a substance

One mole of a substance

None of these

Such an inductor coil which does not consume energy and is often employed for controlling a.c. without consumption of energy is called

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Choke

impedance

Semi-conductor

None

Each atom in metal crystal:

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Remains fixed

Vibrates about a fixed point

Moves randomly

Rotates about center of a crystal

None of these

The waves moving from a sitar to a listener in air are

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Longitudinal progressive

Longitudinal stationary

Transverse progressive

Transverse stationary

The threshold frequency of sodium is 6 x 10⁶MHz. The cut-off wavelength for this metal will be

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500 m

500 nm

500 km

500 cm

None of these

Where the streamlines are very close to each other, the pressure will be

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low

zero

high

all of them

The surface destiny of charge is defined is:

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Charge per volume

Mass per volume

Charge per area

Mass per area

Both (B) and (C)

The concept of direction is purely:

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Absolute

Relative

Relative to stars always

Relative to the sun always

None of these

Stress that induces a change in the shape of the body is named as

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Tensile stress

Volumetric stress

Shear stress

None of these

When a ray of light goes from a denser medium into a rare medium

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The wavelength of light is decreased

The frequency of light increased

The speed of light is increased

The light undergoes a phase change of π

Pressure exerted by a gas on the walls of its container is due to

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Adhesion between the gas molecules and the container

Cohesion between the gas molecules and the container

Collision between the gas molecules and the container

Surface tension of the gas

The dimensions of Einsteins Equation E = mc²

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[ML^-2]

[ML²T^-2]

[M²LT²]

[MLT^-1]

When the second condition for equilibrium, is satisfied then there is no

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Linear acceleration

Angular acceleration

Both

None of these

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 SI unit of heat is:

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Calorie

Horse power

Joule

Watt

A typical rocket ejects the burnt gases at speeds of over

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4000 ms^-1

5000 ms^-1

6000 ms^-1

None of these

If Rx is positive and Ry is negative, the resultant lies the fourth quadrant and its direction is

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θ = 180 + Φ

θ = 360 + Φ

θ = 360 - Φ

None of these

Amorphous solids:

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Have definite melting point

Are called glassy solids

Have no definite meting point

Both B and C

Both A and C

On heating, it becomes a very viscous liquid at almost

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500 C^o

800 C^o

900 C^o

1000 C^o

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