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CAIE A-Level Physics AS 7.4.3 That Wavelengths in the Range 400 700 Nm in Free Space Are Visible to the Questions

Describe how electromagnetic radiation is used in communication and other practical applications.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Describe how electromagnetic radiation is used in communication and other practical applications.

CAIE A-Level Physics AS 7.4.3 That Wavelengths in the Range 400 700 Nm in Free Space Are Visible to the Questions question 1

[Maximum number: 1]

What is the best estimate of the wavelength of green light?

A

260 nm

B

540 nm

C

780 nm

D

920 nm

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