Physics
The scientist who first sent electromagnetic waves to distant places is

Heinrich Hertz
John Logie Baird
Thomas Alva Edison
James Clerk Maxwell

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Physics
A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

Decreasing the radius of the capillary tube
None of these
Increasing the height of water in the vessel
Increasing the radius of the capillary tube

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