PPSC Physics Topic 8 MCQ Test With Answer

PPSC Physics Topic 8 Scientists, Their Inventions and discoveries

Sr. #	Questions	Answers Choice
1	Commutator was invented in	1820 1830 1834 1840
2	Who invented commutator.	William Sturgeon William Smith Michael Faraday Mosely
3	Lenz's was a physicist of.	America Russia Japan China
4	Lenz's presented his law is	1826 1829 1834 1839
5	Faraday's law was deduced in	1826 1831 1836 1841
6	Who discovered a relation between electric and magnetic field.	Hans Christian Oersted Michelson Faraday Lenz Hertz
7	Who discovered a phenomenon of thermos electricity.	Peltier Joule Seeback thomson
8	Who devised a technique for the measurement of change on an electron in 1909	Milikan Joule Ampere Ohm
9	The first measurement of the force between electric charges was made in.	1684 1784 1864 1874
10	Which Russian Physicist first proposed the liquid drop model for the nucleus in 1928	Niels Bohr George Gamow Niel Armstrong Bill Clinton
11	Who developed the first atomic reactor.	Bohr Fermi Rutherford Taylor
12	Who discovered the exclusion principle which states that no two electrons can occupy the same quantum mechanical state in a given system.	Neils Bohr Issac Newton Wolfgang Pauli Max Planck
13	Which scientist coined the term quantum mechanics.	Kari mark Max Born Erwin schrodinger Issac Newton
14	Who first discovered a similarity in nature of x rays and light rays.	Roentgen Bragg Man Von Lave Moseley
15	A relationship between mechanical work and heat energy was firstly established dby.	Davy Count Rumford Joule Kelvin
16	The temperature scale based upon triple point of water was given by	Rumford Carnot Kelvin Celsius
17	The concept of entropy was introduced by	Saadi Carnot Boyle Charles Rudolph Celsius
18	Who described an ideal heat engine in 1840	Boyle Saadi Carnot Kelvin Currie
19	Photophone was invented by	Graham bell Galileo Michelson Faraday
20	The velocity of light was determined accurately by	Newton Huygen Michelson Young