[Solved] A significant limitation of a lower frequency, single element transducer is:

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Q.	A significant limitation of a lower frequency, single element transducer is:
A.	Scatter of sound beam due to microstructure of test object
B.	Increased grain noise or ‘hash’
C.	Less beam spread
D.	Impaired ability to display discontinuities just below the entry surface
Answer» D. Impaired ability to display discontinuities just below the entry surface

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