Answer Posted / sam
telegraph wires are made up of metals like copper, aluminium
etc. they have a tendency of expansion in summers (due to
excessive heat) and contraction in winters (due to loss of
heat), so if they are tightly stretched, they might break in
winters
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
How does the elevation and air pressure affect the boiling point of water?
If f equals electric force, and q and q (read as: q-prime) are the charges on two particles, the expression f is proportional to q times q prime divided by distancesquared is what law?
What is the principle on which sitar and violin are based?
Does sunlight reflected off a mirror increase the temperature of the sun-rays?
Draw a graph between frequency of photon and velocity of photo electron?
the fundamental forces of nature are most correctly given as?
For what the parabolic dishes are used?
Explain what is the shadows?
Explain what is meant by 4th dimension?
What is optical medium?
i applied airports authority of india in jr ATC .please inform how to read &what's syllabus i preparing is best.u send previous papers in mail...
How much does automotive oil weigh?
What formula is most appropriate to compute the kinetic energy of a block of ice sliding down an inclined plane?
In beta minus emission, the number of nucleons in the atom?
So quantum physics must use probability theory? : quantum physics
