The scientist credited with the discovery of ‘Noble gases’ is:
- (A) Rutherford
- (B) McDonald
- (C) Cavendish
- (D) Chadwick
- (C) Cavendish
‘Mercury Thermometer’ was invented by:
- (A) Newton
- (B) Galileo
- (C) Wheeler
- (D) Fahrenheit
- (D) Fahrenheit
Which scale was devised by Celsius?
- (A) Absolute
- (B) Fahrenheit
- (C) Centigrade
- (D) Roomer
- (C) Centigrade
Who is the inventor of a system of writing and printing for blind?
- (A) Robert Bunsen
- (B) Louis Braille
- (C) Sir Humphrey Davy
- (D) Christian Huygens
- (B) Louis Braille
Who invented ‘Bicycle’?
- (A) Neilson
- (B) Karl D. Von
- (C) Louis Braille
- (D) John Hall
- (B) Karl D. Von
Motorcycle was invented by _______ of Germany in 1885.
- (A) Franck Whittle
- (B) Karl D. Von
- (C) Gottlieb Daimler
- (D) Igor Sikorsky
- (C) Gottlieb Daimler
Who was the inventor of scooter?
- (A) Bradshaw
- (B) Edison
- (C) Karl D. Von
- (D) Wim Ouboter
- (D) Wim Ouboter
Who invented the lift (in 1852)?
- (A) E.G. Otis
- (B) J.L. Baird
- (C) Faraday
- (D) Edison
- (A) E.G. Otis
Whose invention is Polaroid camera?
- (A) Fisher
- (B) Wilson
- (C) Land
- (D) Bushnell
- (C) Land
Who invented the audio cassettes?
- (A) Hitachi
- (B) Yale
- (C) Edison
- (D) Phillips
- (D) Phillips