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. |
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 |
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. |
Question 359
Appeared in Year: 2011
Question MCQ▾
A time varying signal is fed to an Op – Amp circuit with output signal as shown
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 |