Question

The incorrect statement(s) among the following is/are
a- The speed of light depends upon the nature of medium through which it passes
b-Elements like Rubidium and Scandium were discovered when their minerals were analysed by spectroscopic method
c-The Balmer series of lines are only lines in hydrogen spectrum which appear in visible region of electromagnetic spectrum
d- All the four quantum numbers were derived from Schrodinger wave equation

Answer 1

Answer:

d is the incorrect option

Explanation:

spin quantum number is not derived from the schrodinger wave equation.

Quantum numbers n,l,m are derived from schrodinger wave equation

Answer 2

ANSWER:-

d- All the four quantum numbers were derived from the Schrodinger wave equation is the incorrect statement

• Because only 3 quantum numbers that are Principal, azimuthal and magnetic quantum numbers are derived from the Schrodinger wave equation whereas, Spin quantum number is not derived from the Schrodinger wave equation.

Explanation Of Correct Statements:-

a- The speed of light depends upon the nature of the medium through which it passes is a correct statement:-

• Because the speed of light depends on the refractive index of the medium where the refractive index is the ratio of the speed of light and the speed of light in a given medium.

b-Elements like Rubidium and Scandium were discovered when their minerals were analysed by spectroscopic method is the correct statement

• Because German chemist whose name was Robert Bunsen was one of the first investigators to use line spectra to observe elements and Rubidium and Scandium were discovered when their minerals were analysed by spectroscopic.

c- The Balmer series of lines are only lines in hydrogen spectrum which appear in visible region of electromagnetic spectrum is the correct statement

• Because Hydrogen emission spectrum series of the hydrogen emission spectrum is called the Balmer series which is the only series of lines in the electromagnetic spectrum that lies in the visible region.

Hence, d- All the four quantum numbers were derived from the Schrodinger wave equation is the incorrect statement.

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