Question

Study the following statement about ozone
A. it is essential for breathing of living organism .
B. It is used to disinfect water
C. It absorbs ultraviolet Rays.
D. It's proportion in air is about 3%.
Which both options are correct ?

Answer 1

Answer:

Option b and c are correct about the ozone.

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Answer 2

Answer:

Explanation:When the pn junction diode is forward biased width of the depletion region reduces and becomes zero. Width of the depletion region disappears when voltage across diode reaches knee voltage. Hence diode acts as a closed switch and conducts