Q4 of 22 Page 174

Rainbow is an example for continuous spectrum explain.

Rainbow is a natural spectrum of colors caused by the dispersion of sun light by tiny water droplets present in atmosphere. This spectrum has no sharp boundaries in between colors. It consists of different wavelengths with no gap. That’s why rainbow is an example of continuous spectrum.


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2

How many spin orientations are possible for an electron in an orbital?

3

In an atom the number of electrons in M-shell is equal to the number of electrons in the K and L shell. Answer the following questions.

a. Which is the outer most shell?


b. How many electrons are there in its outermost shell?


c. What is the atomic number of element?


d. Write the electronic configuration of the element.

 5

How many elliptical orbits are added by Sommerfeld in third Bohr’s orbit? What was the purpose of adding these elliptical orbits?

6

What is absorption spectrum?