Which type of radiation has very short (

Question

Which type of radiation has very short (<10–3 nm) wavelengths, produced by nuclear explosions, lightning and less dramatic activity of radioactive decay?

Accepted Answer

Step-by-step explanation:

1. The question specifies wavelengths "very short (<10–3 nm)", which numerically is $<10^{-3}	ext{ nm}=10^{-12}	ext{ m}$.

2. In the electromagnetic spectrum, gamma rays occupy the shortest-wavelength (highest-energy) region and are typically produced by nuclear reactions, radioactive decay, nuclear explosions and energetic lightning processes.

3. The other options have much longer wavelengths: infrared (≈ $10^{-6}$–$10^{-3}\,$m), microwaves (≈ $10^{-3}$–$10^{0}\,$m), and ultraviolet (≈ $10$–$400\,$nm), so none match the given extremely short wavelength range.

Therefore the correct choice is Gamma radiation (option a).

FINAL_ANSWER: a

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