Question # 1

Light year is a unit of:

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Time

Distance

Velocity

Intensity of light

Distance to nearest galaxy from earth is

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10¹⁰m

10¹⁵m

10⁴⁰m

10³⁰m

The principle characteristics of an ideal standard are

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Inaccessible and Invariable

Accessible and Invariable

Accessible and Variable

None of these

1 gm-cm^-3is equal to:

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10³kg-m^-3

10^-3kg-m^-3

1 kg-m^-3

10⁶kg-m^-1

Physics deals with the study of

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Matter

Energy

Both of them

Human Body

Diameter of the atom is of the order of

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10^-10m

10^-12m

10^-15m

10^-9m

The body of physics involves

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Structure of space and time

Interaction of electromagnetic radiation with matter

Both of them

Chemical Changes

Silicon can be obtained from

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Lead

Uranium

An isotope of oxygen

Sand

Radio telescope is used to gather information from

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Earth

Moon only

Far side of the universe

Sea water

Which of the following are the units of intensity of light

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Pois

Lux

Siemen

Candela

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

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Relativistic mechanics

Wave mechanics

Quantum mechanics

Statics

The quantity have dimension of ML²T⁰²will have SI unit of:

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Watt

Newton

Joule

Metre

From sand, we get a material used for construction with the motion of bodies under the action of forces is called:

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Optics

Mechanics

Thermodynamics

Astrophysics

Which one of the least multiple:

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Pico

Femto

Nano

Atto

A dimension stands for the ___________ nature of certain physical quantity.

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super

Quantitative

Qualitative

Both B and C

Diameter of the nucleus s of the order of

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10^-10m

10^-12m

10^-15m

10^-18m

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ECAT Physics Chapter 1 Measurements Online Test MCQs With Answers

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