Chapter 12 Study of Sound
Top questions
See all →- Helium gas is filled in two identical bottles A and B. The mass of the gas in two bottles is 10g and 40g respectively. Given that, Mass of gas in bottle = m = 10 g Mass of gas in bottle = M= 40 g speed of sound in bottle A =speed of sound in bottle B = V Temp... 1
- Hydrogen gas is filled in two identical bottles, A and B at the same temperature. The mass of hydrogen in Given, mass of bottle A= m = 12 g mass of bottle B = M = 40 g Let us suppose speed of sound in bottle A = v And speed of sound in bottle B =... 1
- Sunil is standing between two parallel walls. The wall closest to him is at a distance of 660m. If he shouts, he hears Given that, The distance of wall closest to him is 660 m. And first echo will be heard after 4 seconds. 1) Thus, distance travelled by the s... 1
- Nita heard the sound of lightning after 4seconds of seeing it. What was the distance of lightning from her? Given that velocity is sound in air is 340m/s. And Nita heard sound of lightning after 4seconds. Hence, the distance of lightning from Nita... 1
- The speed of sound in air at 0°C is 332m/s. If it increases at the rate of 0.6m/s per degree, Let T be the temperature at which velocity of sound is 344m/s. Then the velocity of sound increased from 0°C to T°C would be = 344 - 332= 12... 1
- Where and why sound absorbing materials are used? The sound absorbing materials are used in constructing the roofs and walls of conference halls, auditorium halls and theatre so that the sou... 1