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ser-zykov [4K]
3 years ago
14

Given light with frequencies of: 5.5 x 1014 Hz, 7 x 1014 Hz and 8 x 1014 Hz, calculate the wavelengths in free space. What color

are these waves?
Physics
1 answer:
dolphi86 [110]3 years ago
8 0

Answer:

Explanation:

Given light with frequencies of  5.5 x 10¹⁴ Hz, 7 x  10¹⁴ Hz and 8 x  10¹⁴ Hz

we now, \lambda = \dfrac{c}{\nu}

now

1)   \lambda_1 =\dfrac{3\times 10^8}{5.5\times 10^{14}}

                      = 545.45 nm

2)   \lambda_2 = \dfrac{3\times 10^8}{7\times 10^{14}}

                      = 428.57 nm

3)   \lambda_3 = \dfrac{3\times 10^8}{8\times 10^{14}}

                      =  375 nm

the color related to wavelength are

545.45 nm - green

428.57 nm - blue

375 nm - violet

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<h3>4.</h3>

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Question

Rutherford tracked the motion of tiny, positively charged particles shot through a thin sheet of gold foil. Some particles  travelled in a straight line and some were deflected at different angles.

Which statement best describes what Rutherford concluded from the motion of the particles?

A) Some particles travelled through empty spaces between atoms and some particles were deflected by electrons.

B) Some particles travelled through empty parts of the atom and some particles were deflected by electrons.

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D) Some particles travelled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.    

Answer:

 

The right answer is C)    

Explanation:

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Cheers!

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