Sonograms work under the principle of Doppler Effect. – McqOptions

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1.	Sonograms work under the principle of Doppler Effect.
A.	False
B.	True
Answer» C.

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Sonograms work under the principle of Doppler Effect.
What is the other name for ultrasonic flaw detector?
A_QUARTZ_CRYSTAL_OF_THICKNESS_0.001M_IS_VIBRATING_AT_RESONANCE._CALCULATE_THE_FUNDAMENTAL_FREQUENCY._DENSITY_OF_QUARTZ_=_2.650‚ÄÖ√†√∂‚ÀÖ‚Â•10<SUP>3</SUP>_KG/M<SUP>3</SUP>_AND_YOUNG‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_MODULUS_FOR_QUARTZ_=_7.9‚ÄÖ√†√∂‚ÀÖ‚Â•10<SUP>10</SUP>_N/M<SUP>2</SUP>.?$#
An_ultrasound_pulse_sent_by_a_source_in_sea_is_reflected_by_a_submerged_target_at_a_distance_597.50m_and_reaches_the_source_after_0.83seconds._Find_the_velocity_of_sound_in_sea_water.$
<p>Sonograms work under the principle of Doppler Effect?</p>
<p>What is the other name for ultrasonic flaw detector?</p>
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What is the principle for measurement of the velocity of ultrasonic waves?