Physics-Objective Related Question Answers
1151. The age of rocks and fossils can be calculated through?
carbon dating
1152. The first man made element is?
Technitium
1153. Which element is usually used in radiation theraphy?
Cobalt - 60
1154. The first atomic reactor in India is?
Apsara (Maharashtra - Trombay)
1155. India’s first fast breeder reactor is at?
Kalpakkom in Tamilnadu
1156. In the interior of the sun, which reaction takes place?
Nuclear fusion
1157. In the core of the sun, hydrogen nuclei fuse together to form which nuclei?
Helium
1158. The radiation which is not affected by the magnetic field or electric field is?
GAMA rays
1159. A metal which can absorb and stop radioactive radiations:?
Lead
1160. When a nucleus emits a beta particle its atomic number:?
Increases by one
1161. When a nucleus emits a beta particle it always emits?
Anti neutrino
1162. Which is the element with the greatest half life period?
Urnanium - 238
1163. Artificial radioactivity was first discovered by?
Irene Joliot Curie and Frederic Joliot
1164. The radiations which can penetrate most through substances are?
Gamma rays
1165. The radio isotope formed in the atmosphere due to the action of cosmic rays is?
Carbon 14
1166. An isotope which is used in the production of radio pharmaceutical substance is?
Oxygen 15
1167. When an alpha particle is emitted the atomic number of isotope?
Decreases by two
1168. When a nucleus emits a beta particle the mass number of atom?
Remains the same
1169. The half life period of Carbon 14 is:?
5760 years
1170. Reactions involving changes in the nucleus are called?
Nuclear energy
1171. Pitch blende is the ore of?
Uranium
1172. Which radiation exhibit highest ionizing power?
Alpha rays
1173. The scientist who showed that radioactive isotope may give off three types of radiation was?
Rutherford
1174. Alpha particle is the nucleus of which atom?
Helium
1175. Beta rays are emitted by the atom from?
The neutron of its nucleus
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions
Question ANSWER With Solution