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Unit 1: Science Behind Radiological Equipment

20252m

Which radiation has higher energy?
(i) X-rays
(ii) Alpha emission
(iii) Gamma rays
(iv) Beta emission

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Answer

Correct option: (iii) Gamma rays

Gamma rays are electromagnetic photons and can have very high energies. In radiological physics, photon energy is related to frequency by E=hfE=hf, so higher-frequency photons have higher energy. The actual energy ranges of X-rays and gamma rays can overlap; the distinction is primarily based on origin rather than an absolute energy boundary.

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