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CTET 2 Math and Science Feb 2014 Paper
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Question : 74
Total: 120
The ultrasound equipments used for investigating medical problems work at frequency
below 20 Hz
between 20 Hz and 200000 Hz
between 2000 Hz and 20000 Hz
above 20000 Hz
Validate
Solution:
The ultrasound equipment, familiar for investigating and tracking many medical problems, works at frequencies higher than 20000 Hz.
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