CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 356 - 359 of 696

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Question 356

Appeared in Year: 2011

Question MCQ▾

Monochromatic light of wavelength and intensity falls on a solar cell of area . The conversion efficiency of the solar cell is 10% . If each converted photon results in an electron – hole pair, what is the maximum circuit current supplied by the solar cell?

(Take , and ) (December)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 357

Appeared in Year: 2011

Question MCQ▾

The Hamiltonian of a particle of unit mass moving in the XY – plane is given to be:

in suitable units. The initial values are given to be and . During the motion, the curves traced out by the particles in the xy – plane and the plane are (June)

Choices

Choice (4)Response

a.

a hyperbola and an ellipse, respectively

b.

a straight line and a hyperbola respectively

c.

both straight lines

d.

both hyperbolas

Edit

Question 358

Appeared in Year: 2011

Question MCQ▾

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.

Edit

Question 359

Appeared in Year: 2011

Question MCQ▾

A time varying signal is fed to an Op – Amp circuit with output signal as shown

A Circuit Diagram of an Op – Amp

The circuit implements a (June)

Choices

Choice (4)Response

a.

Low pass filter with cutoff frequency 16 Hz

b.

Low pass filter with cutoff frequency 100 Hz

c.

High pass filter with cutoff frequency 16 Hz

d.

High pass filter with cutoff frequency 100 Hz

Edit