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PIMSO 2025 - Science - Primary 6 - National Round Question 18

PIMSO Science · PIMSO 2025 - Science - Primary 6 - National Round

Question 18

Which is the correct order of electromagnetic energy when arranged from longest to shortest wavelengths?
  1. Infrared rays, radio waves, blue light, red light
  2. X-rays, infrared rays, blue light, gamma rays
  3. Radio waves, infrared rays, visible light, ultraviolet rays
  4. Gamma rays, x-rays, ultraviolet rays, visible light