Astronaut cannot hear sound of his partner in moon, because :
A. Frequency produced is more than audible frequency
B. No medium is there for propagation of sound
C. Temperature at night is very low
D. There are lots of reason in moon.
Answer:B
Astronaut cannot hear sound of his partner in moon, because :
A. Frequency produced is more than audible frequency B. No medium is there for propagation of sound C. Temperature at night is very low D. There are lots of reason in moon.