Question # 1

In the equation E=mc²value of c is:

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1,86,000 miles per hour

1,86,000 miles per sec

3 X 10⁸m/sec

Both A and C

Both B and C

Which quantity has different dimension:

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Work

Pressure

Energy

Torque

Silicon can be obtained from:

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Lead

Uranium

An isotope of oxygen

Sand

The quantity have dimension of ML²T⁰²will have SI unit of:

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Watt

Newton

Joule

Metre

Electron is a particle whose mass is:

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Greater than that of a proton

Smaller than that of a proton

Smaller than that of a proton or a neutron

Greater than that of an atom

Which quantity has different dimensions:

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Work

Pressure

Energy

Torque

Significant figures in 0.0010 are

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Four

Three

Two

One

Light year is a unit of:

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Time

Distance

Velocity

Intensity of light

The error may occur due to:

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Negligence

Faulty apparatus

Inappropriate method

all of these

From sand, we get a material used for construction of computer chips. That material is called:

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Germanium

Silicon

Copper

Lead

The system international (SI) is built from _______ kind of unites

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Two

Three

Four

Five

The mechanics, which deals with the objects moving with velocities approaching that of light is called:

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Relativistic mechanics

Wave mechanic

Quantum mechanics

Statics

The time taken by light to travel from moon to earth is:

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80 sec

500 sec

1.802 X 10⁴sec

Aerophysics

The principle characteristics of an ideal standard are

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Inaccessible and Invariable

Accessible and Invariable

Accessible and Variable

None of these

Astrophysics is a branch of physics, which deals with:

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Sub-atomic particles

Stars and galaxies

Light and sound

Music

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Other Links

ECAT Physics Chapter 1 Measurements Online Test MCQs With Answers

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