Arrange the following electromagnetic radiations per quantum in the order of increasing energy :

A : Blue light      B : Yellow light
C : X-ray             D : Radiowave.

 

  • Option 1)

    D, B, A, C

     

  • Option 2)

    A, B, D, C

     

  • Option 3)

    C, A, B, D

     

  • Option 4)

     B, A, D, C

     

 

Answers (1)

As we learnt in

Balmer series -

\frac{1}{\lambda }= R\left ( \frac{1}{2^{2}}- \frac{1}{n^{2}} \right )

\left ( \: visible \: light \right )

- wherein

n=3,4,5-----

When electron jump from higher orbital to n=2 energy level

 

 

 Radio wave < Yellow light < Blue ligh < X-ray

Correct option is 1.


Option 1)

D, B, A, C

 

This is the correct option.

Option 2)

A, B, D, C

 

This is an incorrect option.

Option 3)

C, A, B, D

 

This is an incorrect option.

Option 4)

 B, A, D, C

 

This is an incorrect option.

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