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What is the minimum escape velocity required for a rocket to leave Earth's gravitational pull?
Which material has the lowest refractive index?
Einstein was awarded Nobel Prize for –
Which of the following occurs in a positively charged body ------------.
The instrument for measuring intensity of earthquakes is called –
A ship will submerge when it displaces water equal to its
The energy possessed by a body due to its position or shape is known as:
Which pioneer of the late 19th century is credited with using radio waves for signal transmission over several kilometers?
Foucault Experiment is the proof of
Which pioneer scientist used radio waves to transmit signals over distances of several kilometres in the 1890s?