Which is the most suitable means of reliable continuous communication between an orbiting satellite and earth:
Mecrowaves
Radio waves
Sound waves
Any light waves
Optical fibres works on the principle of:
Reflection
Refraction
Total internal reflection
Diffraction
One byte is equal to:
7 bits
5 bits
8 bits
9 bits
At mean position of pendulum, the potential energy of the pendulum is:
Maximum
Minimum
Much more
Both a and c
SI unit of capacitance is:
Joule
Volt
Watt
Farad
The advantages of electronic mail are:
Fast communication
Cost free service
More efficient
All of these