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6. What type of wave has the shortest wavelength

  • Gamma
  • Infra red
  • Radio
  • X Ray

7. Dangers of Infra-red?

  • cell mutation
  • Skin burns
  • internal heating of body tissue
  • damage to surface cells and blindness

8. What are some uses of UV rays?

  • fluorescent lamps
  • cooking
  • medial imaging
  • thermal imaging

9. Dangers of Microwaves?

  • internal heating of body tissue
  • skin burns
  • cancer
  • blindness

10. Uses of Infra Red?

  • broadcasting and communications
  • heaters and thermal imaging
  • satellite transmissions and cooking
  • Medical imaging

11. Dangers of UV?

  • causes burns
  • cancer and cell mutation
  • damage to surface cells and blindness
  • rashes

12. Uses of X-rays?

  • fluorescent lamps
  • observing the internal structure of objects and materials, including for medical applications
  • sterilising of food and medical equipment
  • mapping the sun and galaxies