In an optical fibre the signal is transmitted
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What is the unit of calorific value?
Which of the following are the smaller planets than the size of the Earth?
The centre of a cyclone is a calm area, it is called the ________ of the storm.
How many KB is equal to 1 GB?
Which type of democracy do we follow in India?
Sun appears red in colour at sunrise and sunset due to
Which one of the following institutions is also called "World Bank" ?