Classical Mechanics-Special Theory of Relativity (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 11 - 15 of 19

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Question number: 11

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2012

MCQ▾

Question

What is the proper time interval between the occurrences of two events if in one inertial frame the events are separated by and occurs apart? (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 12

» Classical Mechanics » Special Theory of Relativity » Mass-Energy Equivalence

Appeared in Year: 2011

MCQ▾

Question

The minimum energy of an electron (the rest mass of which is 0.5 MeV) that can emit Cerenkov radiation while passing through water (of refractive index 1.5) is approximately – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 13

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2011

MCQ▾

Question

Two gravitating bodies A and B with masses and , respectively, are moving I circular orbit. Assume that and let the radius of the orbit of body A be . If the body A is losing mass adiabatically, its orbital radius is proportional to –

(June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 14

» Classical Mechanics » Special Theory of Relativity » Mass-Energy Equivalence

Appeared in Year: 2011

MCQ▾

Question

An atom of mass M can be excited to a state of mass by photon capture. The frequency of a photon which can cause this transition is – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 15

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2011

MCQ▾

Question

A planet of mass m moves in the inverse square central force field of the Sun of mass M. If the semi – major and semi – minor axes of the orbit are and , respectively, the total energy of the planet is: (December)

Choices

Choice (4) Response

a.

b.

c.

d.

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