Ultrasound: practice question

A Radiology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Radiology · Ultrasound

Sample item

What is the main physical basis of diagnostic ultrasound imaging?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Reflection of sound waves

The defining Ultrasound principle supports Reflection of sound waves; it is the answer that best accounts for the finding or clinical aim described.

Option by option

  • A. Magnetic spin alignment

    Magnetic spin alignment does not provide the expected imaging or dental conclusion here.

  • B. Emission of gamma rays

    Emission of gamma rays is less appropriate because it does not match the stated ultrasound feature.

  • C. X-ray attenuation only

    X-ray attenuation only may be useful in another context but is not supported by this scenario.

  • D. Reflection of sound waves (correct)

    Correct. Reflection of sound waves is the most appropriate interpretation of the key information.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is D, Reflection of sound waves. The defining Ultrasound principle supports Reflection of sound waves; it is the answer that best accounts for the finding or clinical aim described.

Why is "Magnetic spin alignment" not the answer?

Magnetic spin alignment does not provide the expected imaging or dental conclusion here.

Why is "Emission of gamma rays" not the answer?

Emission of gamma rays is less appropriate because it does not match the stated ultrasound feature.

Why is "X-ray attenuation only" not the answer?

X-ray attenuation only may be useful in another context but is not supported by this scenario.

What concept does this question test?

It tests Ultrasound in Radiology. The correct option holds because: Correct. Reflection of sound waves is the most appropriate interpretation of the key information.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Ultrasound?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.