Question

B. Fill in the blanks.
1. Sound cannot propagate through
2. Among gases, liquids and solids, sound has the slowest speed in
3. Human ear cannot hear sound of frequency
4. The S.I. unit for measuring frequency is
5. The sound producing organ in humans is called the
6. The shrillness of a sound depends on its​

Answer 1

Answer:

here r Ur answers

Explanation:

1. Vacuum
2. Gases
3. 2,000-5,000 Hz
4. Hertz
5. larynx
6. pitch

please mark as branliest

Answer 2

Your answers are :-

1. Vacuum
2. Gases
3. 20,000 - 50,000 hertz
4. Hertz
5. Larynx
6. Pitch


Hope this helps you : )