DP Physics (first assessment 2025)

Test builder »

Question 21M.1A.SL.TZ2.40

Select a Test
Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ2.40
Level SL Paper 1A Time zone TZ2
Command term Question number 40 Adapted from N/A
40.
[Maximum mark: 1]
21M.1A.SL.TZ2.40

An electron of non-relativistic speed v interacts with an atom. All the energy of the electron is transferred to an emitted photon of frequency f . An electron of speed 2v now interacts with the same atom and all its energy is transmitted to a second photon. What is the frequency of the second photon?

A.  f4

B.  f2

C.  2f

D.  4f

[1]

Markscheme

D

Syllabus sections