Question

1 Calculate the wavelength of visible light having a frequency of 4.37 x 10¹⁴s^-1.

A) 12.0 nm

B) 343 nm

C) 686 nm

D) 674 nm

E) none of the above

2 The wavelength of a beam of light is 24 mm. What is the energy of one of its photons?

A) 5.3 x 10^-47J

B) 8.3 x 10^-24J

C) 5.3 x 10^-45J

D) -8.3 x 10^-21J

E) none of the above

3 The Rydberg equation, with n₁= 1, predicts an ultraviolet series of spectral lines of atomic hydrogen. Which of the following wavelengths is not predicted by the equation?

Rydberg equation: 1/ = (1.097 x 10⁷m-1) x (1/n₁²- 1/n₂²)

A) 182 nm

B) 103 nm

C) 97 nm

D) 95 nm

E) 91 nm