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  • Electromagnetic waves with wavelength i) lambda _{1} is used in satellite communication ii) lambda _{2} is used to kill germs in water purifies iii) lambda _{3} is used to detect leakage of oil in underground pipelines

Electromagnetic waves with wavelength

i) \lambda _{1} is used in satellite communication

ii) \lambda _{2} is used to kill germs in water purifies

iii) \lambda _{3} is used to detect leakage of oil in underground pipelines

iv) \lambda _{4} is used to improve visibility in runaways during fog and mist conditions

a) identify and name the part of the electromagnetic spectrum to which these radiations belong

b) arrange these wavelengths in ascending order of their magnitude

c) write one more application of each

Answers (1)

a) i) \lambda _{1} is used in satellite communication : a microwave

   ii) \lambda _{2} is used to kill germs in water purifier for killing germs : a UV ray

   iii) \lambda _{3}  is used in improving the visibility: a X-ray

   iv) \lambda _{4} is used to improve visibility in runaways during fog and mist conditions: an infrared ray

b) By arranging those wavelengths in ascending order: \lambda _{3}<\lambda _{2}<\lambda _{4}<\lambda _{1}

c) i) Gamma rays: Those are used in nuclear structures.

    ii) X rays: Those are used in medical diagnosis.

   iii) UV rays: Those are used in the preservation of food.

  iv) Infrared rays: Those are used to take photograph

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