1e2 Frequency, wavelength and energy of light emission

Presentation

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Science

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9th - 12th Grade

•

Medium

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NGSS

HS-PS4-1, HS-PS4-3

Standards-aligned

ANGELA SWILLEY

Used 9+ times

FREE Resource

2 Slides • 8 Questions

Multiple Choice

A certain photon of light has a wavelength of 4.22x10^-7nm. What is the frequency? (v=c/λ)

7.11x10¹⁴Hz

7.11Hz

1.41x10^-15

-1.41x10¹⁵

Multiple Choice

What is the energy of a photon with a frequency of 5.0 x 10¹⁴Hz?

2.5 x 10^-19 J

3.3 x 10^-19J

3.0 x 10^-19J

4.5 x 10^-19J

Multiple Choice

What is the energy of a quantum of light with a frequency of 7.39x10¹⁴Hz.(E=Hv)

4.88x10¹⁹

4.88x10^-19

2.22x10²³

2.22x10^-23

Multiple Choice

Certain blue lights have a frequencey of 6.91x10¹⁴Hz. What is the wavelength? (λ=c/v)

4.34x10²¹

4.34x10^-21

4.34x10^-7

2.07x10²³

Multiple Choice

What is the wavelength for a quantum of light with energy of 7.56x10^-19J? (λ=hc/E)

2.62x10^-7m

2.62x10⁷m

2.64x10^-45m

2.64x10⁴⁵m

Multiple Choice

A light has a wavelength of 5.06x10^-7m. What is the frequency of the light? What is the color of light? (v=c/λ)

16.87Hz, Red

5.93Hz, Orange

5.93x10^-14Hz, Blue

5.93x10¹⁴Hz, Green

Multiple Choice

Solve this problems using the equation: C = λ x ν
If an AM radio station broadcasts at 9.95 x 10⁵ Hz, what is the wavelength of this radiation?

6.59 x 10^-28 m

1.01 x 10^-6 m

3.32 x 10^-3 m

301 m

Multiple Choice

Microwaves are used to cook food and transmit information. What is the wavelength of a microwave that has a frequency of 3.44 × 10⁹ Hz?

For this problem, what formula do you use?

c = λν

E = hv

λ = c/v

v = c/λ

Explanation Slide...

λ= wavelengthv= frequencyc= speed of light in a vacuum/3.00 × 108 m/s

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