How d o the radio-waves pass through walls ?
Answer / sanju
Most insulating materials ate transparent to radio waves.
Short radio-waves are blocked off by steel framed building,
while the longer waves flow around and get over obstacles
like mountains and buildings.
| Is This Answer Correct ? | 0 Yes | 1 No |
Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?
WHICH ONE FEELS COLDER METAL SURFACES OR WOODEN SURFACES?
Explain what is the transparent?
Why is lighting conductor used ?
What happens when you travel across the dateline?
Explain planck’s hypothesis or what the postulates of planck’s quantum theory? (Or) what are the assumptions of quantum theory of black body radiation? : quantum physics
Does solar radiation contain a complete spectrum of all forms of electromagnetic radiation?
What is the use of rectifiers? Point out them one by one.
Why are the mountains colder than the plains ?
What is the difference between emf & current
Explain the advantage of fixed pulley?
Explain the difference between isolation transformers and step up or step down transformer?