Which of the following energies of light has the longest wavelength? 6.25 x 10 -

ID: 841490 • Letter: W

Question

Which of the following energies of light has the longest wavelength?

6.25 x 10-14 J

9.02 x 10-20 J

4.22 x 10-18 J

6.14 x 10-19 J

2.85 x 10-19 J

Which of the following transitions (in a hydrogen atom) represents emission of the highest frequency light?

n = 2 to n = 1

n = 5 to n= 4

n = 4 to n = 1

n = 3 to n = 2

n = 6 to n = 5

6.25 x 10-14 J

9.02 x 10-20 J

4.22 x 10-18 J

6.14 x 10-19 J

2.85 x 10-19 J

Which of the following transitions (in a hydrogen atom) represents emission of the highest frequency light?

n = 2 to n = 1

n = 5 to n= 4

n = 4 to n = 1

n = 3 to n = 2

n = 6 to n = 5

1.E=h*c/x

x=wavelength

since energy is inversely proportional less energy gives the longest wavelength so it is 9.02*10^-20

2.the energy transition is given by=(-13.6/n2^2)-(-13.6/n1^2)ev

so lets check it out (let 13.6 be x)

option 1=3x/4

option 2=9x/400

option 3=15x/16

option 4=5x/36

option 5=11x/900

so it is option 3 from 4 to 1

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