Sound

The handle of tuning fork is called

• prongs

• stem

• handle

Which type of instruments does shehnai belong to

• wind instrument

• stringed instrument

• reed instrument

Which instruments belong to stringed instrument?

• timpani

• cornet

• mandolin

Speed of sound in steel

• 5100m/s

• 5100km/h

• 5656 km/h

SI unit of amplitude

(a)  

Which absorbs sound in the following options?

• Wool

• steel

• marble

After whom was the unit hertz named after?

(a)  

What was the first caluated speed of sound?

(a)  

Which people adopted the method of putting your ear on the ground to hear if enemy is approching?

• Aaryans

• Red Indians

• Aborginals

how much is the speed of light?

• 3 × 10 to the power 8 m/s

• 330 m/s

• 350 m/s