The central colour in a rainbow ?

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The ratio of pure gold in 18 carat gold is _______________?

A. 0.5 B. 0.9 C. 0.8.5 D. 0.75...

Which is correct order of solar system starting from Sun ?

A. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus C. Mercury, Venus, Mars, Earth, Jupiter, Saturn, Neptune, Uranus D. Mercury, Venus, Earth, Jupiter, Mars, Saturn, Uranus, Neptune...

There is no connection of supernova explosion with___________?

A. Cosmic rays B. Pulsars C. The formation of heavy elements D. Quasars...

Communication satellites are in which orbit ?

A: Geosynchronous B: Semi synchronous C: Geostationary  D: None of above GK Forum@Fb.com...

A Rhinoscope (or Nasoscope) is a thin, tube-like instrument used to examine the inside of the_____?

A. Eyes B. Nose C. Ears D. Brains...