Question
Write frequency range of the following electromagnetic radiations and state one use of each :(i) Micro wave (ii) Ultraviolet radiation(iii) Gamma rays.
✓
Answer
(i) $1 \times 10^9 Hz$ to $3 \times 10^{11} Hz$ (In radar)
(ii) $8 \times 10^{14} Hz$ to $1 \times 10^{16} Hz$ (In food conservation)
(iii) $3 \times 10^{18} Hz$ to $3 \times 10^{22} Hz$ (In radio therapy)
(ii) $8 \times 10^{14} Hz$ to $1 \times 10^{16} Hz$ (In food conservation)
(iii) $3 \times 10^{18} Hz$ to $3 \times 10^{22} Hz$ (In radio therapy)
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