Takaaki Kajita and Arthur. B. McDonald win Nobel prize in Physics 2015.
Q. Who are the winners of the Nobel Prize in Physics announced on 6th October 2015?- Published on 07 Oct 15a. Takaaki Kajita
b. Arthur. B. McDonald
c. Stephen Hawking
d. Both a and b
ANSWER: Both a and b
Japanese researcher Takaaki Kajita and Canadian physicist Arthur B. McDonald have won the Nobel prize in Physics 2015 for discovering neutron oscillations showing that neutrinos have mass. These are one of the fundamental particles making up the universe and subatomic particles are produced by decay of radioactive elements lacking electric charge. Researchers studying changes of identity among most abundant inhabitants in the universe have claimed this year’s prize. This discovery has solved a longstanding puzzle involving neutrinos whereby two thirds of the neutrino released in nuclear reactions was missing on earth as against the sun. As regards the whereabouts of the neutrino, neutrinos change identities and this has been suggested as a solution for the puzzle.