Answer:
option D
Explanation:
the ventricles are located under both atrias of the heart
Answer:
The time required to receive the echo at the transducer is 
Explanation:
Frequency of ultrasonic beam, f = 5 MHz
It reflects off an object 5 cm deep.
We need to find the time required to receive the echo at the transducer. The ultrasonic wave is an electromagnetic wave. it moves with a speed of light. Let t is the time taken by the wave to go once.
So,



Time to receive the echo at the transducer gets doubled. So,

Hence, this is the required solution.
This an example of dad that dont believe in his sun future or thinks this is the best for his son. but its call wasting talents
Ight I am good I need help with science hw tho