GATE (Graduate Aptitude Test in Engineering) Physics (PE): Questions 209 - 213 of 1823

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Question 209

Appeared in Year: 2013

Question MCQ▾

An oscillating current flows in the direction of the y – axis through a thin metal sheet of area kept in the plane. The rate of total energy radiated per unit area from the surfaces of the metal sheet at a distance of 100 m is – (June – 2013)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 210

Appeared in Year: 2013

Question MCQ▾

A perturbation is added to the Hydrogen atom potential. The shift in the energy level of 2P state, when the effects of spin are neglected up to second order in , is – (Dec. 2013)

Choices

Choice (4)Response

a.

b.

c.

d.

0

Edit

Question 211

Appeared in Year: 2013

Question MCQ▾

Consider the following ratio of the partial decay widest,

If the effects pf electromagnetic and weak interaction are neglected, then and are respectively is given as, (Dec -2013)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 212

Appeared in Year: 2013

Question MCQ▾

If the electrostatic potential in a charge free region has the form , then the functional form of (in the following and are constants) is – (December – 2013)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 213

Appeared in Year: 2013

Question MCQ▾

The Fourier transform of the derivative of the Dirac function, namely , is proportional to – (Dec -2013)

Choices

Choice (4)Response

a.

1

b.

0

c.

d.

Edit