Light consists of colours of a rainbow:
(a) Three
(b) Five
(c) Seven
(d) Nine
Cell phone (mobile phone) was invented by:
(a) Louis Pasteur
(b) Adams John
(c) Martin Cooper
(d) Otto Hahn
Atom bomb was invented by:
(a) Armstrong
(b) Otto Hahn
(c) J.C. Harrison
(d) Louis Pasteur
Who discovered the satellites of Jupiter?
(a) Galileo
(b) Kepler
(c) Newton
(d) John Napier
Gene was first isolated by:
(a) J.C. Bose
(b) John Napier
(c) Friedrich Miescher
(d) None of these
A healthy human brain contains ___________ of cells.
(a) Hundreds
(b) Thousands
(c) Millions
(d) Billions
Appendicitis is the inflammation of:
(a) Joints
(b) Appendix
(c) Liver
(d) Heart
Which of the following diseases is contagious?
(a) Measles
(b) Tetanus
(c) Cancer
(d) Typhoid
The measurement of rainfall is made by an instrument known as:
(a) Hydrometer
(b) Barometer
(c) Hygrometer
(d) None of these
When a ray of sunlight enters a dark room, its straight path become visible because of dust particles hanging in the air, It is because light is:
(a) Visible
(b) Opaque
(c) Invisible
(d) Transparent