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Cambridge IGCSE Physics practice

Paper 3 structured question: Electromagnetic spectrum

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Electromagnetic spectrum

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Paper 3Theory (Core)1 marks

Electromagnetic waves are essential in various technologies.

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Speed of Electromagnetic Waves

All electromagnetic waves travel at the same speed in a vacuum, which is approximately 3.00 x 10^8 m/s.

  1. a

    State the speed of electromagnetic waves in a vacuum.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Electromagnetic spectrum

Paper 3Theory (Core)2 marks

Description

Electromagnetic Waves

Electromagnetic waves include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. They all travel at the same speed in a vacuum.

  1. a

    State two types of electromagnetic waves.

    Aim for approximately 2 distinct marking points.

    [2]