Question

1.
A. Choose the correct option.
1. Sound cannot travel in
a. solids
b. liquids
C. gases
d. vacuum

2. In humans, the vocal folds (vocal cords) are present in the
a. neck
b. ear
C. mouth
d. nose

3. Which of these can produce a sound that we can hear easily?
b. Ripples in a pond
a. Air
c. A simple pendulum
d. A drum

4. Sound travels fastest in
a. air
b. water
C. glass
d. diamond

5. A sitar is
a. a wind instrument
C. a percussion instrument
b. a stringed instrument
d. used for producing beats

6. Which of these is a unit of time period?
a. Hertz
b. Second
C. Newton
d. Pascal

7. Sound of which of these frequencies would be audible for us?
a. 15 Hz
b. 2000 Hz
C. 50,000 Hz
d. 5 Hz

8. For the same pitch, a louder sound would have a
a. greater amplitude
b. greater frequency
c. lower amplitude
d. lower frequency

9. Which of these is a percussion instrument?
a. Violin
b. Tabla
C. Veena
d. Flute

10. Which of these is a wind instrument?
a. Guitar
b. Harmonica
d. Piano
C. Dholak
​

Answer 1

Answer

1. vaccum

2.neck

3.Air

4.air

5.a strringed instrument

6. second

7.2000 HZ

8.

Answer 2

Answer:

IT IS COMPLETELY RIGHT AND VERIFIED

Explanation:

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