Test 3: Complete Chapter – Figures, Tables, Numericals and Details

Question 1

In Fig. 13.1, the sound is heard when the sound waves enter a person's:

• Aears
• Beyes
• Cnose
• Dskin

Question 2

In Fig. 13.4, sound is produced by a vibrating diaphragm of a:

• Aloudspeaker
• Bguitar
• Cdrum
• Dbell jar

Question 3

The bell jar apparatus (Fig. 13.5) is placed on the base of a:

• Avacuum pump
• Bstove
• Ctuning fork
• Dloudspeaker

Question 4

According to Table 13.1, the speed of sound in air at 0 °C is:

• A330 m s⁻¹
• B346 m s⁻¹
• C391 m s⁻¹
• D1290 m s⁻¹

Question 5

The speed of sound in air increases with temperature. In Table 13.1 the highest value for air is at:

• A100 °C
• B0 °C
• C25 °C
• Dall equal