Question

Unit of frequency is

(a) hertz

(b) decibel

(c) metre

(d) metre/second

Clear selection




22. Time taken for 10 oscillation of a body is 20 second, then time period of the body is

(a) 1 sec

(b) 2 sec

(c) 3 sec

(d) 4 sec

Clear selection




23. Shrill sound is of

(a) higher frequency

(b) lower frequency

(c) higher amplitude

(d) lower amplitude

​

Answer 1

Answer:

ur ans is ⬇️⬇️

1 meter

2 3 sec

3. higher amplitude

fõllõw mê ✌️⚫

Answer 2

Answer:

1. Hertz
2. 2 sec.
3. Higher Frequency