which wave is related to telecommunication?
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Explain interference?
Why are morning and evening less warm than noons ?
What do you mean by diffraction and what is/are the proper condition/conditions for it?
By primarily using what simple machine did galileo come to the conclusion on the existence of friction?
Why a pen used for writing with ink is always split as its pointed end?
When we press our hand on a table downwards, why we do feel the table pressing id greater.
Explain what affect does electricity have on soil?
our breath can produce current?
How to prepare for the post State bank of india clerk personal interview ?
Tell me what is pascal s principle?
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?
Why in cold countries, the water at the surface freezes and in the inner portion it is in the sate of water ?