Question

please send the answer with proper explanation ​

Answer 1

Answer:

Mark as brainliiest answer

Explanation:

The velocity of ultrasonic waves in liquid hydrogen depends upon the ortho-para concentration in the liquid. Between 14 and 20°K the velocity in a 99.8% para mixture is about 8 m/sec or about 0.6% smaller than in the 25% mixture. In the frequency range from 1 to 5 MHz no influence of frequency could be detected.

Answer 2

Answer:

Different is the answer