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5.2 The electromagnetic spectrum

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Question 26
H

A beam contains 80 J of visible-light energy and 40 J of infrared energy.

A filter transmits 75% of the visible-light energy and 20% of the infrared energy.

How much energy in total is transmitted?

[1]
A

52 J52\ \mathrm{J}52 J

B

60 J60\ \mathrm{J}60 J

C

68 J68\ \mathrm{J}68 J

D

114 J114\ \mathrm{J}114 J

Markscheme

5.2 The electromagnetic spectrum Questions

  1. GCSE
  2. /Physics
  3. /5.2 The electromagnetic spectrum

84 exam-style questions on Edexcel GCSE Physics 5.2 The electromagnetic spectrum, covering 5.2.1 Electromagnetic waves and refraction in glass (core practical), 5.2.2 Groups of the electromagnetic spectrum, 5.2.3 Wavelength-dependent behaviour of EM waves, and 5.2.4 Velocities of EM waves in different substances. Each one has a worked solution and a mark scheme showing where the marks go.

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