Q111. Sound wave has frequency more than 20 kHz is called                    .

Q112. When heat is given to the boiling water, the temperature of the water___________.

Q113. In \(i =A\sin (\omega t + \phi)\), the name angular velocity is used for _____ term. (t = time)

Q114. Light waves are .

Q115. When the crest of one wave incident on crest on another and trough of one wave incident on trough on another, then the term is called______.

Q116. Velocity of light in air is \(3 \times10^8\:m/s\) and \(1.75 \times10^8\:m/s\) in liquid. Refractive index of the liquid is __________.

Q117. What is the relation of equivalent capacitance for capacitors joined in parallel?

Q118. Volume of a Hall is \(8000 \:m^3\). If total absorption is \(800\:m^2- O.W.U\)., then Reverberation time of hall is _______.

Q119. The full name of LASER is_______.

Q120. Sound waves are the ______ type of waves from the following.