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Which statement is not correct for ultrasound and X-rays? A - AQA - A-Level Physics - Question 14 - 2017 - Paper 1
Question 14
Which statement is not correct for ultrasound and X-rays? A. Both can be refracted B. Both can be diffracted C. Both can be polarised D. Both can be reflected
Worked Solution & Example Answer:Which statement is not correct for ultrasound and X-rays? A - AQA - A-Level Physics - Question 14 - 2017 - Paper 1
Step 1
Identify the incorrect statement
Answer
To determine which statement is not correct for ultrasound and X-rays, we need to examine each option:
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A. Both can be refracted: This statement is true. Both ultrasound and X-rays exhibit refraction when passing through different mediums.
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B. Both can be diffracted: This statement is also true. Both types of waves can undergo diffraction, especially when they encounter obstacles or openings.
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C. Both can be polarised: This statement is not correct. Ultrasound waves, being mechanical waves, can be polarised. However, X-rays are electromagnetic waves and can also be polarised, but the nature of how they interact with matter is different.
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D. Both can be reflected: This statement is true as both ultrasound and X-rays can reflect off surfaces.
Therefore, the statement which is not correct is that both types can be polarised in similar contexts.