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Cambridge IGCSE. 2025. Physics (0625). May/June - Paper 2 (22) · Multiple Choice (Extended) - Question 23

Cambridge IGCSE · Paper 2 (22) · Multiple Choice (Extended)

Question 23

What is the approximate speed of light in air?
  1. 300 m/s
  2. 300 km/s
  3. $3.0 \times 10^{8}$ m/s
  4. $3.0 \times 10^{8}$ km/s
0
0
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