True or False. The amount of energy passing per second through until area is called intensity of sound

Sound energy passing per second through a unit area held perpendicular is called _________ .

True or False. The velocity of sound is high in gases than liquids.

Conside the situation shown in figure. The frame is made of the same material and has a unifrom cross-section area everywhere. Calculate the amount of heat flowing per second through a cross section of the bent part if the total heat taken out per second from the end at 100^(@)C is 130J .

True or False. The velocity of sound is independent of temperature .

The phenomenon of light passing through the object is called _____.

Loudness measures the sound energy reaching the ear per second and depends on the amplitude of the sound wave. What is the unit used to measure the loudness of sound?

I : Electromagnetic wave is a mechanical wave. II : The energy crossing per unit area per unit time and perpendicular to the direction of propagation of electromagnetic wave is called intensity. Which one is correct?

True or False: Presence of moisture in air is called humidity.