Question # 1

An oscillating body oscillates due to:

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Applied force

Restoring force

Frictional force

None of these

The values 1 and 0 are designated as:

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Continuous values

Binary values

Boolean values

Decimal values

Either (B) and (C)

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

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P

1/2 fv²

pgh

none of them

The resistance offered by a fluid to a solid moving inside it is called:

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Drag force

Surface force

Viscosity

None of these

A convex lens acts as diverging lens when the object is placed:

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Between F and 2F

At 2F

With focal length

Beyond 2F

The pattern of NaCl particles have a shape which is :

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Cubic

Body centred cubic

Simple cubic

face centred

Both (A) and (C)

The dimension of linear inertia is:

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MLT²

ML⁰T^-2

ML⁰T⁰

MLT^-1

When a conductoris moved across a magnetic field:

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Emf induced its similar to that of a battery

Emf induced gives rise to induced current

An emf is induced across its ends

All are correct

None of these

Field lines are closer to each other in the region where the filed is

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Stronger

Weaker

Much weaker

Absent

None of these

At high speed, fluid friction _____ and fuel consumption ___,:

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Increases, decreases

Increases, increases

Decreases, increases

None of these

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be

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Negative

Positive

Infinite

Zero

The dimensions of Planck's constant is equal to that of

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Energy

Momentum

Angular momentum

Power

The smooth or steady stream-line flow is know as

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Laminar flow

Turbulent flow

Both a and b

None of the above

No practical heat engine can be pergectly

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Ideal

Reversible

Irreversible

None of these

Sky seems blue due to

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Diffraction

Polarization

Dispersion

Scattering

Newtons law of motion defines

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Mass

Force

Acceleration

Speed

Graham Bell photo phone used a modulated beam of

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Reflected sun light

Refracted sun light

Diffracted sun light

None of these

Crystalline solids are also

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Metals

Ionic compound

Ceramics

All of them

The eye piece of a compound microscope acts as a

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Diverging lens

Converging lens

Diverging mirror

Converging mirror

The vertical velocity component changes with

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Distance

Time

Height

Angle

The ratio of the numerical values of the average velocity and average speed of a body is always.

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Unity

Unity or less

Unity or more

Less than unity

Which of the following light move faster in water

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Red

Violet

Green

Blue

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