5. What is the wavelength of a wave that has a frequency of 6.1 · 10° Hz? Remember that c = 2.998 · 10° m/s. 0.049 m 0.49 m 5.2 m 52 m

part one: Calculate the energy required to promote an electron from n = 3 to n=7 for one electron and one mole of electrons.   Part two:Calculate the wavelength required to promote an electron from n = 3 to n=7   Part three: Calculate the frequency for a wavelength of 75 km?

What is the frequency of a photon if its wavelength is 2.15 x 104 angstroms? O 1.26 X 1013s-1 O 1.40 X 1014 s-1 O 2.15 X 10-6 s1 O 1.82 X 1019s-1

For an advanced lab project, you are studying an unknown hydrogen-like atom. For these atoms, you determine that as excited atoms de-excite, the n = 3 → 2 transition emits a wavelength of 2.624 ✕ 10−8 m and the n = 4 → 2 transition emits a wavelength of 1.944 ✕ 10−8 m. Determine the wavelength (in m) of light emitted in the n = 4 → 3 transition. _______ m

What is the wavelength of the matter wave associated with a proton moving at 391 m/s? wavelength of proton matter wave: What is the wavelength of the matter wave associated with a 189 kg astronaut (including her spacesuit) moving at the same speed? wavelength of astronaut matter wave: What is the wavelength of the matter wave associated with Earth moving along its orbit around the Sun? wavelength of Earth matter wave: m m m

Calculate the energy of a photon of light with a frequency of 6.95 E 14 hz.  a 1.04 E −5 J  b 2.87 E −13 J  c 3.34 E −19 J  d 5.67 E −29 J

Ex: The Hydrogen atom electron moves from the second energy level (n=2) to the first energy level (n=1). Calculate the released energy and the wavelength caused by this movement.

1. Determine the wavelength of a radio station transmitting a broadcast at 520 Megahertz. 0.57 m a) b) 5.8 x 10° m 1.6 x 1011 m c) d) 1.6 x 10 m

A heat lamp produces 32.8 watts of power at a wavelength of 6.5μm. How many photons are emitted per second? (1 watt = 1 J/s)