Question

A radar spots an enemy plane. A radio pulse emitted by radar and reflected by the plane reaches back in 0.5 x 1/10³ s. What is the distance of the plane from the radar station? [Take speed of radar pulse = speed of light = 3 x 10⁸ m/s]​

Answer 1

Answer:

1825

1825- 1826

William Sturgeon (British) invents the electromagnet, a coil of wires with an iron core to enhance the magnetic field.