Q801.Who invented thermoscope, an early form of thermometer?
Correct answer: Galileo
Q802.Which is the biggest telescope of the world?
Correct answer: Ice Cube
Q803.Wilhelm Roentgen invented
Correct answer: X-Ray Machine
Q804.Who among the following scientists shared the Nobel Prize in Physics with his son?
Correct answer: William Henry Bragg
Q805.Who invented Steam Engine?
Correct answer: James Watt
Q806.‘Telephone’ was invented by
Correct answer: Graham Bell
Q807.Who discovered electric bulb?
Correct answer: Thomas Edison
Q808.The book ‘India Wins Freedom’ is the autobiography of
Correct answer: Maulana Abul Kalam Azad
Q809.Gas engine was invented by
Correct answer: Daimler
Q810.Who has written the book named ‘Gita Rahasya’?
Correct answer: Bal Gangadhar Tilak
Q811.Who was the inventor of the fountain pen?
Correct answer: Waterman
Q812.Which one of the following pairs is correctly matched?
Correct answer: Annie Besant - New India
Q813.Who was the inventor of Radar?
Correct answer: Robert Watson
Q814.The memoirs entitled ‘Bapu: My Mother’ was written by
Correct answer: Manubehn
Q815.Alfred Nobel invented
Correct answer: Dynamite
Q816.Which one of the following books was written by Tilak?
Correct answer: Gita Rahasya
Q817.Who discovered Television?
Correct answer: Baird
Q818.‘Srimad Bhagavat Gita Rahasya’ was written by
Correct answer: Bal Gangadhar Tilak
Q819.With what invention is the name of J.L. Baird associated with?
Correct answer: Television
Q820.Aurobindo Ghosh wrote
Correct answer: The Life Divine