Scientists &Inventions Part -1

11. 'Telephone' was invented by — [M.P.P.C.S. (Pre) 1995]

(a) Graham Bell
(b) Hoffman
(c) Wilson
(d) George Stephenson

Correct Answer: (a) Graham Bell

Solution:

Telephone was invented by Alexander Graham Bell in 1876.

12. Who discovered electric bulb? [M.P.P.C.S. (Pre) 2010]

(a) Thomas Edison
(b) Alexander Graham Bell
(c) William Cooke
(d) Terry Addison

Correct Answer: (a) Thomas Edison

Solution:

American scientist Thomas Alva Edison is the inventor of the electric bulb.

13. Gas engine was invented by: [U.P.P.C.S. (Pre) 1995]

(a) Diesel
(b) Davy
(c) Daimler
(d) Charles

Correct Answer: (c) Daimler

Solution:Diesel engine was developed by Rudolph Diesel in 1895. Gas engine was developed by Gottlieb Daimler in 1885.

14. Who was the inventor of the fountain pen? [M.P.P.C.S. (Pre) 2005]

(a) Waterman
(b) Parker
(c) Chelpark
(d) Shaeffers

Correct Answer: (a) Waterman

Solution:Lewis Edson Waterman invented the fountain pen in 1883 in New York. He patented the first practical fountain pen in 1884.

15. Who was the inventor of Radar? [48th to 52nd B.P.S.C. (Pre) 2008]

(a) Robert Watson
(b) Fleming
(c) Bush Wall
(d) Austin

Correct Answer: (a) Robert Watson

Solution:Scottish physicist Robert Alexander Watson was a pioneer and significant contributor to the development of radar (Radio Detection and Ranging). He produced the first radar system in 1935, which was greatly used by the Royal Air Force of Britain in World War II.

16. Alfred Nobel invented - [M.P.P.C.S. (Pre) 1995]

(a) Microphone
(b) Typewriter
(c) Dynamite
(d) Gramophone

Correct Answer: (c) Dynamite

Solution:Swedish scientist Alfred Nobel invented dynamite. The famous Nobel Foundation was established based on his will in 1900.

17. Who discovered Television? [M.P.P.C.S. (Pre) 1995]

(a) Edison
(b) Galileo
(c) Baird
(d) Franklin

Correct Answer: (c) Baird

Solution:Television was invented by J.L. Baird in 1926 in Britain. Galileo invented the telescope.

18. With what invention is the name of J.L. Baird associated? [M.P.P.C.S. (Pre) 1998]

(a) Barometer
(b) Helicopter
(c) Television
(d) Telephone

Correct Answer: (c) Television

Solution:Television was invented by J.L. Baird in 1926 in Britain. Galileo invented the telescope.

19. Who among the following invented the Laser? [Uttarakhand Lower Sub. (Pre) 2010, I.A.S. (Pre) 2005]

(a) Theodore Maiman
(b) Denis Papin
(c) William Morton
(d) Francis Crick

Correct Answer: (a) Theodore Maiman

Solution:Theodore Maiman was the inventor of the Laser (Light Amplification by the Stimulated Emission of Radiation). On 16 May 1960, he successfully demonstrated the laser in action using a ruby crystal in his laboratory at Hughes in Malibu.

20. Which one of the following pairs is NOT correctly matched? [U.P.P.C.S (Pre) 2011]

(a) James Watt -Steam Engine
(d) J. Perkins - Penicillin
(b) A.G.Bell - Telephone
(c) J.L. Baird- Television

Correct Answer: (d) J. Perkins - Penicillin

Solution:Penicillin was discovered by Scottish scientist Alexander Fleming. The other pairs are correctly matched.