Which of the following components has the longest wavelength?*1 pointMicrowavesUltraviolet lightX-raysγ-rays

To determine which of the listed components has the longest wavelength, we need to compare their wavelength ranges. Here are the typical wavelength ranges for each of the components mentioned:

1. Microwaves: Typically range from about $1 \, \text{mm}$ to $1 \, \text{m}$ (or $10^{-3} \, \text{m}$ to $10^{0} \, \text{m}$).
2. Ultraviolet Light: Typically ranges from about $10 \, \text{nm}$ to $400 \, \text{nm}$ (or $10^{-8} \, \text{m}$ to $4 \times 10^{-7} \, \text{m}$).
3. X-rays: Typically range from about $0.01 \, \text{nm}$ to $10 \, \text{nm}$ (or $10^{-11} \, \text{m}$ to $10^{-8} \, \text{m}$).
4. Gamma Rays ($γ$-rays): Typically have wavelengths less than $0.01 \, \text{nm}$ (or $10^{-11} \, \text{m}$).

Conclusion

• Out of these ranges, microwaves have the longest wavelength, ranging from $1 \, \text{mm}$ to $1 \, \text{m}$, which is significantly longer than the wavelengths of ultraviolet light, X-rays, and gamma rays.

Final Answer

Microwaves have the longest wavelength among the given options.