GATE (Graduate Aptitude Test in Engineering) Physics (PE): Questions 626 - 630 of 1823

Choose Programs:

📹 Video Course 2024 (354 Lectures [236 hrs : 31 mins]): Offline Support

Rs. 1460.00 -OR-

1 Month Validity (Multiple Devices)

Preview All LecturesDetails

🎓 Study Material (327 Notes): 2024-2025 Syllabus

Rs. 400.00 -OR-

3 Year Validity (Multiple Devices)

Topic-wise Notes & SampleDetails

🎯 248 Numeric, 1575 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)

Rs. 550.00 -OR-

3 Year Validity (Multiple Devices)

CoverageDetailsSample Explanation

Help me Choose & Register (Watch Video) Already Subscribed?

Question 626

Appeared in Year: 2010

Question MCQ▾

A particle of mass is confined in the potential ,

Let the wavefunction of the particle be given by , where and are the eigenfunctions of the ground state and the first excited state respectively. The expectation value of the energy is –

Potential V/S Position Graph

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 627

Appeared in Year: 2010

Question MCQ▾

The solution of the differential equation for , subject to the initial conditions and , is –

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Passage

Consider the propagation of electromagnetic wave in a linear, homogeneous and isotropic material medium with electric permittivity , and magnetic permeability .

Question 628 (1 of 2 Based on Passage)

Appeared in Year: 2010

Question MCQ▾

For a plane wave of angular frequency and propagation vector propagation in the medium Maxwell՚s equations reduce to –

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 629 (2 of 2 Based on Passage)

Appeared in Year: 2010

Question MCQ▾

If and assume negative values in a certain frequency range, then the directions of the propagation vector and the Poynting vector in that frequency range are related as -

Choices

Choice (4)Response

a.

and make an angle that depends on the magnitude of and

b.

and are perpendicular to each other

c.

and are anti – parallel

d.

and are parallel

Edit

Question 630

Question MCQ▾

For a spin particle, in the eigen basis of the expectation value is –

Choices

Choice (4)Response

a.

b.

c.

d.

Edit