Planck's Constant

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

What is the typical units of measurement for the "E" in the following equation: 
E_photon= h x f

• joules
• meters
• meters/seconds
• hertz

The equation that shows the relationship between the energy of light and frequency is: 

• c= λ⋅f
• E=h⋅f

Tags

NGSS.HS-PS4-1

What is the energy of light whose wavelength is 4.06 x 10^-11 m? 

• 2.69 x 10^-44 J
• 1.63 x 10^-23 J
• 4.90 x 10^-15 J
• 8.97 x 10^{-53 J}

Tags

NGSS.HS-PS4-1

What is Planck's Constant?

• 6.63x10^-34 Js

• 6.63x10^-34 J/s

• 3.0x10⁸ ms

• 3.0x10⁸ m/s

Tags

NGSS.HS-PS4-1

What is the speed of light?

• 3.0x10⁸ ms

• 3.0x10⁸ m/s

• 6.626x10^-34 Js

• 6.626x10^-34 J/s

Tags

NGSS.HS-PS4-1