Question # 1

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

The law of conservation of energy gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

Blood has density equal to that of

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Mercury

Sodium

Honey

Water

Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

Angular displacement is

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Scalar quantity

Vector quantity

Basic quantity

None of these

The fringe spacing increases if we use.

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Yellow light

Green lgiht

Blue light

Red light

The device used to study the spectra from different sources of light is

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Telescope

Optical fibre

Spectrometer

Microscope

Close orbiting satellites orbit the earth at a height of about

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400 km

4000 km

400 m

400 cm

The work done by centripetal force is

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(-)ve

(+)ve

Maximum

Zero

The internal energy of system does not depend on

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Temperature

Pressure

Path

Final and initial state

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Unit vector

+ve of a vector

Resultant vector

-ve of a vector

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

An immediate source of energy for our body is:

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mango

Glucose

mushroom

meat

The SI units of solid angle is

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Streadian

Radian

Degree

None of these

Moment of inertia is measure din

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Kg m2

Kg m-2

Rad s-1

Joule second

Intensity of light depend on

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Wave length

Amplitude

Velocity

Frequency

The to and fro motion of a body is called

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Linear motion

Rotational motion

Vibratory motion

None of these

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