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Which of the following layers of the atmosphere makes Radio Communication possible?
Which one of the following animals can hear ultrasonic sound?
‘Therm' is the unit of –
Which law is also called the law of inertia?
The Dimensions of “G” (Universal Gravitation Constant) is:
Which pioneer scientist used radio waves to transmit signals over distances of several kilometres in the 1890s?
Which metal exhibits the highest electrical conductivity among the following?
What is the SI unit for measuring electric current?
A ray of light from the object parallel to principal axis of a concave lens, after refraction appears to diverge from which point on the same side of th...
What conditions must be met for stationary waves to form?
