Physics (AS & A Level) · Oct / Nov 2017 · Paper 13 · Question 28
An electromagnetic wave travels in a straight line through a vacuum. The wave has a frequency of 6.0 THz. What is the number of wavelengths in a distance of 1.0 m along the wave?
- A5.0 × 10⁻⁵
- B2.0 × 10¹
- C2.0 × 10⁴
- D5.0 × 10⁷
As printed in the paper
Show the answer
Correct answer: C. 2.0 × 10⁴
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.