Light and Energy Calculations

The frequency of violet light is 7.5x10¹⁴ Hz. What is its wavelength?

• 4.0x10^-7 m

• 4.0x10⁷ m

• 2.25x10²³m

• 2.25x10²³ Hz

Tags

NGSS.HS-PS4-1

Red light has a wavelength of 675 x 10^-9 m. What is its frequency?

• 2.03x10¹¹ m

• 4.44x10¹⁴ Hz

• 4.44x10¹⁴ nm

• 2.03x10¹¹ Hz

Tags

NGSS.HS-PS4-1

Red light has a wavelength of 675 nm.  What is its frequency?

• 2.03x1011 m
• 4.44x1014 Hz
• 4.44x1014 nm
• 2.03x1011 Hz

Tags

NGSS.HS-PS4-1

IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that measured infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of

1.10 X 10^-6 m?

• 3.67 x 10^-15 Hz

• 3.67 x 10^-3 Hz

• 2.73 x 10² Hz

• 2.73 x 10¹⁴ Hz

Tags

NGSS.HS-PS4-1

Calculate the wavelength of light that has a frequency of 5.2 x 10¹² Hz

• 5.8 x 10 ^-5 m

• 5.8 x 10 ^-7 m

• 5.19 x 10 ¹⁴ m

• 1.56 x 10 ²³ m

Tags

NGSS.HS-PS4-1

The yellow light given off by a sodium vapor lamp used for public lighting in San Pedro has a wavelength of 589 nm. What is the frequency of this radiation?

• 5.09 x 10¹⁴ s^-1 or 5.09 x 10¹⁴ Hz

• 50.9 x 10¹⁴ s^-1 or 50.9 x 10¹⁴ Hz

• 509 x 10¹⁴ s^-1 or 509 x 10¹⁴ Hz

• 0.509 x 10¹⁴ s^-1 or 0.509 x 10¹⁴ Hz

Tags

NGSS.HS-PS4-1

Ms. Hoffman's microwave has a wavelength of 0.032 m. Calculate the frequency of this microwave. What answer choice best fits the actual frequency of this wave?

• 9.38 x 10⁹ s^-1 or 9.38 x 10⁹ Hz

• 9.38 x 10¹⁰ s^-1 or 9.38 x 10¹⁰ Hz

• 9.38 x 10¹¹ s^-1 or 9.38 x 10¹¹ Hz

• 9.38 x 10⁸ s^-1 or 9.38 x 10⁸ Hz

Tags

NGSS.HS-PS4-1

Calculate the energy of one photon of yellow light the has a wavelength of 589 nm. What answer selection best fits the calculation in this problem?

• 3.37 x 10^-19 J

• 3.37 x 10^-18 J

• 3.37 x 10^-20 J

• 3.37 x 10¹⁹ J

Tags

NGSS.HS-PS4-1

What is the energy of a quantum of light with a frequency of 7.39x10¹⁴Hz.

• 4.88x10¹⁹

• 4.88x10^-19

• 2.22x10²³

• 2.22x10^-23

Tags

NGSS.HS-PS4-1

Certain blue lights have a frequencey of 6.91x10¹⁴Hz. What is the wavelength?

• 4.34x10²¹

• 4.34x10^-21

• 4.34x10^-7

• 2.07x10²³

Tags

NGSS.HS-PS4-1