Electronics and Experimental Methods [CSIR (Council of Scientific & Industrial Research) Physical Sciences]: Questions 34 - 37 of 70
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Question 34
Appeared in Year: 2012
Question MCQ▾
Band – pass and band – reject filters can be implemented by combining a low pass and a high pass filter in series and in parallel, respectively. If the cut – off frequencies of the low pass and high pass filter are and , respectively, the condition required to implement the band pass and band reject filter are, respectively – (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 35
Appeared in Year: 2012
Question MCQ▾
The output characteristic of a solar panel at a certain level of irradiance is shown in the figure below.
If the solar cell is to power a load of , the power drawn by the load is –
(December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 36
Appeared in Year: 2012
Question MCQ▾
The output (O) of the given circuit in cases and , where;
Case I:
Case II:
are respectively,
(June)
Choices
Choice (4) | Response | |
---|---|---|
a. | 0,1 | |
b. | 1,0 | |
c. | 1,1 | |
d. | 0,0 |
Passage
Light of wavelength 660 nm and power of is incident on a semiconductor photodiode with an absorbing layer of thickness of .
Question 37 (1 of 2 Based on Passage)
Question MCQ▾
If the absorption coefficient at this wavelength is and if power is lost on reflection at the surface, the power absorbed will be –
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |