Question

2. Which of the following is a source of sound?
a. Lamp
C. Vibrating air column in a pipe b . furnace dn none of these
3. Which of the following is a string instrument?
O c. Piano
a. Tabla
b. Flute d. harp
4.Which one is a percussion instrument?
c. Guitar
a. Maracas
O b. Trumpet d.sitar
5. Pitch of a sound wave depends on:
c. energy
a. frequency O b. amplitude
d. none of these
​

Answer 1

Answer:

2. none of these

3.Harp

4. Maracas

5.frequency

Explanation:

Can you please mark mine as brainlest please.

Answer 2

2. Which of the following is a source of sound?

Answer : C. Vibrating air column in a pipe

3. Which of the following is a string instrument?

Answer : D. Harp

4. Which one is a percussion instrument?

Answer : C. Guitar

5. Pitch of a sound wave depends on ?

Answer : A. Frequency