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Question 16

Choose the correct option relating wavelengths of different parts of electromagnetic wave spectrum:

$$\lambda_{\text{radiowaves}} \approx 10^{-1}\ \text{m to } 10^{4}\ \text{m}$$, 

$$\lambda_{\text{microwaves}} \approx 10^{-3}\ \text{m to } 10^{-1}\ \text{m}$$, 

$$\lambda_{\text{visible}} \approx 3.8 \times 10^{-7}\ \text{m to } 7.8 \times 10^{-7}\ \text{m}$$, 

$$\lambda_{\text{x-rays}} \approx 10^{-11}\ \text{m to } 10^{-8}\ \text{m}$$

$$\lambda_{\text{radiowaves}} > \lambda_{\text{microwaves}} > \lambda_{\text{visible}} > \lambda_{\text{x-rays}}$$

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