Physics XII - Physical World 01

Question : 1

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Select correct statement regarding mesoscopic physics

Options:

	It deals with molecules, atoms, nuclei and subatomic particles
	It deals with the phenomenon at the laboratory, terrestrial and astronomical scale
	It deals with quantum physics
	It deals with a few tens or hundreds of atoms together

Solution :

It is a domain intermediate between the
macroscopic and microscopic domains.

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Question : 2

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The book “Philosophie Naturalis Principia Mathematica” published in 1687 was written by

Options:

	Albert Einstein
	Galileo
	Abdus Salam
	Isaac Newton

Solution :

It is written by Newton.

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Question : 3

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“Classical Physics” deals with

Options:

	Microscopic phenomena
	Macroscopic phenomena
	Mesoscopic phenomena
	All of these

Solution :

Classical physics deals mainly with
macroscopics phenomena.

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Question : 4

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The scientific principle involved in radio and television broadcast is

Options:

	Amplification by population inversion
	Electromagnetic induction
	Magnetostatic shielding
	Propagation of electromagnetic wave

Solution :

Propagation of electromagnetic waves involves in radio and television broadcast.

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Question : 5

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What is the range of mass covered in scope of physics?

Options:

Solution :

Mass of an electron to mass of known
observable universe.

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Question : 6

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The quantum model of atom was given by

Options:

	Rutherford
	Bohr
	A. Einstein
	M.N. Saha

Solution :

Drawbacks of Rutherford model was some
what explained by Bohr’s quantum model
of atom.

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Question : 7

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“The most incomprehensible thing about the world is that it is comprehensible” who made this remark?

Options:

	Newton
	Einstein
	Maxwell
	Abdus Salam

Solution :

This is of Einstein’s remark.

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Question : 8

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It is postulated that there may be some particle which can move with speed greater than the speed of light. Such postulated particle is named as

Options:

	Leptons
	Mesons
	Pions
	Tachyons

Solution :

They are grouped and known as Tachyons.

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Question : 9

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The scientific principle involved in computers is

Options:

	Electromagnetic induction
	Digital logic
	Amplification by population inversion
	Propagation of electromagnetic waves

Solution :

Digital logic is the principle involved in
computers.

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Question : 10

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Find odd one out

Options:

	Archemedes – Principle of Buoyancy
	Max-Plank – Quantum theory
	Edwin Hubble – Electromagnetism
	John Bair – Television

Solution :

Edwin Hubble studied regarding expanding
universe.