What sound waves travel from air to water the frequency remains?
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which one of the following does a tv remote control unit used to operate a tv ? a)light waves b) sound waves c) micro waves d) radio waves
What is the Condensation ?
why is a coin in a vessel not vissible when seen fromjust below the edge of the vessel but can be viewed from the same position when water is poured into the vessel ?
Explain reflection of light?
Explain about Vacuum Pump?
Define Nucleus?
A solar collection has been installed to heat water. A large water tank has a volume of 5.0 x 105 cm3. The area of the solar collectors is 8m2. (2 meters by 3 meters). If the water in the tank starts out with a temperature of 30°C in the morning, what is its temperature in the evening after the sun has set?
How will you make the clock go fast ?
what is difference b/w scr &rectifier&mechanism of triac experiment
Why is there more friction when you push an object than when you pull it?
What is the difference between emf & current
Why are the passengers in a boat not allowed to stand up?