Question

What is the function of a photodiode?

2. Can the potential function have a maximum or minimum value in free space?

3. In a half wave rectifier circuit operating from 50 Hz mains frequency, what would be the fundamental

frequency in the ripple?

4. A steady current flows in a metallic conductor of non-uniform cross-section. Which of the following

quantities is/are constant along the length of conductor : current, current density, drift speed?

OR

The graph shown in the figure represents a plot of current versus voltage for a given semiconductor. Identify

the region, if any, over which the semiconductor has a negative resistance.

C

Current mA ( )

Voltage (V)

A

B

0

5. Why is the penetrating power of gamma rays very large?

OR

Welders wear special goggles or face masks with glass windows to protect their eyes from electromagnetic

radiations. Name the radiations and write the range of their frequency.

6. Define the term ‘coherent sources’ which are required to produce interference pattern in​

Answer 1

Answer:

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Explanation:

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Answer 2

A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound