Which rays are used in the treatment of cancer?

Last Updated: 25 Jun 2026

Here, the relevant answer is “X-rays/Gamma rays.” A sound solution relies on the governing concept rather than a memorised option letter, because option order may change in another paper. The distractors in this question—Infrared rays, Ultraviolet rays, Radio waves—do not satisfy the exact condition stated. The final selection must agree with the explanation and marked answer: X-rays/Gamma rays.

AInfrared rays

BUltraviolet rays

CX-rays/Gamma rays

DRadio waves

Correct Answer: X-rays/Gamma raysYour Answer: C

Explanation

— the scientifically appropriate response is X-rays/Gamma rays. Option-wise review: X-rays/Gamma rays is correct under the condition given in the stem. Infrared rays is incorrect because it describes a different quantity or phenomenon and does not meet the stated condition. Ultraviolet rays is also incorrect; although it may be a valid physics term, its definition or application is not the one asked here. Radio waves is incorrect because it fails the governing relation or characteristic relevant to this case. Therefore, option C, X-rays/Gamma rays, is factually and logically consistent with the question. X-rays and gamma rays are used in radiation therapy for cancer treatment.

Important Notes

the complete stem before looking at the options. Identify whether the demand is a definition, unit, formula, direction, cause, effect, image characteristic, or device principle. In this record, the confirmed answer is X-rays/Gamma rays.
Eliminate Infrared rays, Ultraviolet rays, Radio waves here because none fulfils the exact requirement of the stem. The final answer and correct-index field must point to option C.
Exam memory point: connect X-rays/Gamma rays directly with the key wording of the question, then verify it once against the relevant definition or formula before marking the answer.Radiation therapy destroys cancer cells

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FAQ

SSC CGL Physics FAQs

Common questions and clear answers for this topic.

How many physics questions usually appear in the SSC CGL exam?

Physics typically makes up a small portion of the General Science questions, usually focused on concepts rather than numerical problems.

Which physics topics are most important for SSC CGL?

Basic mechanics, heat, sound and light, and electricity and magnetism are the areas that come up most consistently across previous papers.

Do I need to solve numerical problems for SSC CGL physics?

Rarely. Most questions are conceptual and test everyday understanding rather than calculation skills.

Is NCERT physics enough for SSC CGL preparation?

NCERT textbooks from classes 9 and 10 build a strong enough conceptual base for most of what SSC CGL asks.

How can I make physics concepts easier to remember for SSC CGL?

Connecting concepts to everyday observations, like why a thermos keeps tea warm, makes them far easier to recall than memorizing definitions.

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