Discoveries & Inventions

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1 Who invented Radar ?

A
J.H. Van Tassel
B
Wilhelm K. Roentgen
C
P.T. Farnsworth
D
A.H. Taylor & Leo C. Young

2 X-rays were discovered by :

A
Faraday
B
Roentgen
C
H. Davy
D
Lavoisier

3 Who invented vaccination?

A
James Simpson
B
Edward Jenner
C
Alexander Fleming
D
Christian Barnard

4 Who invented the “Voice Mail”?

A
Gordon Matthews
B
Alexander Graham Bell
C
J.A. Fleming
D
V. Poulsen

5 Who invented the video-tape ?

A
Richard James
B
Charles Ginsberg
C
P. T. Farnsworth
D
Georges de Mestral

6 X–rays were discovered by which of the following:

A
Becquerel
B
(2)Roentgen
C
Marie Curie
D
(4)Van Lue

7 The telephone was invented by:

A
G. Marconi
B
Alexander Graham Bell
C
J.L. Baird
D
Thomas Barrow

8 Who invented aeroplane ?

A
Orville Wright and Wilbur Wright
B
Sir Frank Whittle
C
Michael Faraday
D
Christian Huygens

9 Trie concept of “Green House Gases” was postulated by which of the following:

A
Joseph Furier
B
Abdui Kalam
C
M. S. Swaminathan
D
Richael Carlson

10 Who invented Helicopter?

A
Copernicus
B
Sikorsky
C
Cockrell
D
Drinker

11 Who Invented Internet Protocol?

A
Vint Cerf
B
David Chaum
C
Georges Claude
D
Josephine Cochrane

12 Who invented the ‘World Wide Web’ ?

A
Tim Berners-Lee
B
Martin Cooper
C
R. Samuel Tomlinson
D
Charles Babbage

13 Pick out the person associated with the coining of the term ‘gene’.

A
Waldeyer
B
Mendel
C
Johannsen
D
Morgan

14 An instrument used to measure the density of milk is :

A
Glactometer
B
Lactometer
C
Calciometer
D
Polarimeter

15 Radioactivity was discovered by which of the following:

A
Rutherford
B
Henri Becquerel
C
Roentgen
D
Einstein