CSIR Physical Sciences: Questions 144 - 147 of 401

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 401 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

Question number: 144

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2011

MCQ▾

Question

In the operational amplifier circuit below, the voltage at point A is –

Image shows an operational amplifier circuit

Image Shows an Operational Amplifier Circuit

In figure a circuit of an operational amplifier

(December)

Choices

Choice (4) Response

a.

0 V

b.

– 5.0 V

c.

0.5 V

d.

1.0 V

Question number: 145

» Electromagnetic Theory » Interference

Appeared in Year: 2014

MCQ▾

Question

A parallel beam of light of wavelength λ is incident normally on a thin polymer film with air on both sides. If the film has a refractive index n>1 , then second order bright fringes can be observed in reflection when the thickness of the film is - (December)

Choices

Choice (4) Response

a.

3λ4n

b.

λ2n

c.

λ4n

d.

λn

Question number: 146

» Quantum Mechanics » Eigenvalue Problems

Appeared in Year: 2012

MCQ▾

Question

Let ψnlm denote the eigenfunctions of a Hamiltonian for a spherically symmetric potential V(r) . The wave function ψ=14[ψ210+5ψ211+10ψ213] is an eigenfunction only of – (June)

Choices

Choice (4) Response

a.

L2andLz

b.

HandLz

c.

H,L2andLz

d.

HandL2

Question number: 147

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2014

MCQ▾

Question

The electrostatic line of force due to a system of four point charges is sketched below.

The electrostatic lines of force

The Electrostatic Lines of Force

In figure the electrostatic line of force due to a system of four point charges is shown.

At a large distance r , the leading asymptotic behaviour of the electrostatic potential is proportional to – (December)

Choices

Choice (4) Response

a.

r3

b.

r

c.

r1

d.

r2

f Page
Sign In