MEDIUM
Diploma
IMPORTANT
Earn 100

What is the ionisation energy for a hydrogen atom in the state n=3?

Important Questions on Quantum and Nuclear Physics (HL)
HARD
Diploma
IMPORTANT
Find the smallest wavelength that can be emitted in a transition in atomic hydrogen.

HARD
Diploma
IMPORTANT
What is the minimum speed an electron must have so that it can ionise an atom of hydrogen in its ground state?

HARD
Diploma
IMPORTANT
Consider a brick of mass Moving at Estimate its de Broglie wavelength.

MEDIUM
Diploma
IMPORTANT
Consider a brick of mass Moving at . Comment on whether it makes sense to treat the brick as a wave.

MEDIUM
Diploma
IMPORTANT
Describe an experiment in which the de Broglie wavelength of an electron can be measured directly.

HARD
Diploma
IMPORTANT
Determine the speed of an electron whose de Broglie wavelength is equal to that of red light(680mn).

HARD
Diploma
IMPORTANT
Show that the de Broglie wavelength of an electron that has been accelerated from rest through a potential difference V is given by .

HARD
Diploma
IMPORTANT
Calculate the de Broglie wavelength of a proton to that of an alpha particle when both have been accelerated from rest by the same potential difference.
