Hydrogen spectrum

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

• 7.11x10¹⁴ Hz
• 7.11Hz
• 1.41x10^-15
• -1.41x10¹⁵

Tags

NGSS.HS-PS4-1

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low
• high, high
• low, high
• low, low

Tags

NGSS.HS-PS4-1

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

Tags

NGSS.HS-PS4-1

As the frequency of an electromagnetic wave increases, the amount of energy in that wave...

• increases.
• decreases.
• stays the same.

Tags

NGSS.HS-PS4-1

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

Tags

NGSS.HS-PS4-1

For an electron to change from ground state to an excited stated it must...

• Absorb energy
• Release energy

The ground state is the highest energy state of an atom.

• True
• False

Which the equation show the relationship among wavelength, frequency, and speed of radiation.

• $\Delta E\ =\frac{hc}{\lambda}$

• $\Delta E=hv$

• $\lambda\ =\ \frac{c}{v}$

• $En=-\ R_{H\ }\left(\frac{1}{n^2}\right)$

Which the energy of an electron in a given energy state of the H atom.

• $\Delta E\ =\frac{hc}{\lambda}$

• $\Delta E=hv$

• $\lambda\ =\ \frac{c}{v}$

• $En=-\ R_{H\ }\left(\frac{1}{n^2}\right)$

the diagram show

• the formation of continous spectrum

• the formation of line spectrum

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4