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.

Edit

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.

The Output Characteristic of Solar Panel

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.

Edit

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,

A Logical Circuit with Five Gates

(June)

Choices

Choice (4)Response

a.

0,1

b.

1,0

c.

1,1

d.

0,0

Edit

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.

Edit