Calculate the wavelength of the photon (in nm) emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 1.096776 x107 m–1), using the following formula

Silver has a work function, Φ, of 4.64 eV. If a sample of silver is bombarded with 213 nm photons, what will be the wavelength (in meters) of the photo-ejected electrons? (1 eV = 1.60 × 10⁻¹⁹ J, the mass of an electron is 9.109 x 10⁻³¹ kg, and Planck's constant is 6.626 x 10⁻³⁴ Js.)

What wavelength of radiation has photons of energy 6.12×10−19 J ? Express your answer with the appropriate units.

Calculate the de Broglie wavelength (in nanometers) of a hydrogen atom (m = 1.674 × 10–27 kg) moving at 1500 cm/s.

If a laser emits 5.4 x 1019 photons per second and transfers a total of 87.06 J of energy over 1.93 seconds, what is the wavelength of the emitted light in nm?

An excited ion emits radiation at a wavelength of 690.2 nm in the visible range of the spectrum. Calculate the frequency of a photon of this radiation (in hertz).

Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 445 g of water is heated in a microwave oven from 20.0°C to 98.0°C, with radiation of wavelength 1.55x10−2 m. How many photons are absorbed by the water in the soup?

If a laser emits 5.0 x 1019 photons per second and transfers a total of 80.58 J of energy over 2.06 seconds, what is the wavelength of the emitted light in nm?

2. Given that the speed of light is 3.0 x 108 m s1,, show that the frequency of blue light having a wavelength of 480 nm is 6.25 × 1014 s-1 (nm = nanometer, 1 nm = 10-9 %3D m).

Calculate the wavelength of light emitted as an electron undergoes a transition from level n= 110 to n = 109. In what region of the electromagneticspectrum does this lie?