blacksmith
New member
The threshold wavelength in a photoelectric experiment is found to be 500 nm. What is the work function? What will be the photoelectric stopping potential when 300 nm UV radiation strikes the surface?
If Planck’s constant was 6.63 J·s (instead of 6.63 x10-34 J·s) what would be the wavelength of a football (mass = 400grams) kicked at 25 m/s? What would be the minimum uncertainty in its position compared to the separation of the goal posts (18.5 ft)?
Sketch and label the energy level diagram for sodium which has been ionized 10 times. What is the wavelength of light produced by the transition from n=5 to n=3?
Thanks! Help on any of them
If Planck’s constant was 6.63 J·s (instead of 6.63 x10-34 J·s) what would be the wavelength of a football (mass = 400grams) kicked at 25 m/s? What would be the minimum uncertainty in its position compared to the separation of the goal posts (18.5 ft)?
Sketch and label the energy level diagram for sodium which has been ionized 10 times. What is the wavelength of light produced by the transition from n=5 to n=3?
Thanks! Help on any of them