______ are used in radiotherapy.

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BPSC AE Paper 3 (General Studies) 14 Oct 2022 Official Paper
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  1. X - rays
  2. γ - rays
  3. UV - rays
  4. IR - rays

Answer (Detailed Solution Below)

Option 2 : γ - rays
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The correct answer is γ - rays

Key Points

  • γ - rays are a form of electromagnetic radiation used extensively in radiotherapy for treating cancer.
  • They have high energy and can penetrate deep into tissues, making them effective in targeting and destroying cancer cells.
  • Radiotherapy using γ - rays can be precisely controlled to minimize damage to surrounding healthy tissues.
  • These rays are produced by radioactive isotopes like Cobalt-60 and are commonly used in medical treatments.

Additional Information

  • X-rays are also used in medical imaging and diagnostic radiology but are less common in radiotherapy compared to γ - rays.
  • UV rays and IR rays are not suitable for radiotherapy due to their lower energy levels and inability to penetrate deeply into tissues.
  • Radiotherapy can be delivered externally using machines or internally through radioactive sources placed near the target area.
  • Advancements in radiotherapy technology have led to more precise and effective cancer treatments with fewer side effects.
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