Emission Spectra Practice

What is the frequency of UV light that has an energy of 2.39 × 10 ^-18 J? 

• 2.32 x 10⁹ Hz
• 3.60 x 10¹⁵ Hz
• 1.58 x 10^-51 Hz
• 3 x 10⁸  m/s

Tags

NGSS.HS-PS4-1

Find the energy, in joules per photon, of microwave radiation with a frequency of 7.91 × 10 ¹⁰ 1/s.

• 6.63 x 10^-34 J
• 5.25 x 10¹⁴ J
• 5.24 x 10^-23 J
• 1.19 x 10⁴⁴ J

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

What is the frequency of a photon whose energy is 3.4x10^-19J?

• 8.8x10²⁶ Hz
• 5.1x10¹⁴ Hz
• 1.9x10^-15 Hz
• 2.3x10^-52 Hz

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

A common infrared laser operates at 1.06 x 10³ nm. What is the energy of a photon with this wavelength? (1 nm = 1x10^-9m)

• 7.02 x 10^-40 J
• 6.25 x 10^-28 J
• 3.54 x 10^-15 J
• 1.87 x 10^-19 J

Tags

NGSS.HS-PS4-1

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

A common infrared laser operates at 1.06 x 10³ nm. What is the energy of a photon with this wavelength? (1 nm = 1x10^-9m)

• 7.02 x 10^-40 J
• 6.25 x 10^-28 J
• 3.54 x 10^-15 J
• 1.87 x 10^-19 J

Tags

NGSS.HS-PS4-1