Question
Identify the following electromagnetic radiations as per the frequencies given below$:$
  1. $10^{20}\ Hz$
  2. $10^9\ Hz$
  3. $10^{11}\ Hz$
Write one application of each.

Answer

  1. $10^{20}\ Hz \rightarrow γ-$radiation,
Application: For treatment of cancer.
  1. $10^9\ Hz \rightarrow$ Radio waves,
Application: For broadcasting radio-programmes to long distances.
  1. $10^{11}Hz \rightarrow$ Microwaves,
Application: For cooking in microwave oven.

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