Description : Radio activity was discovered by : (1) Becqueral (2) Soddy (3) Rutherford (4) Curie
Last Answer : Becqueral
Description : Radon is------? A. germon radio B. radio active gas (Answer) C. artificial fibre D. an explosive
Last Answer : B. radio active gas (Answer)
Description : Which among the following waves is used for communication by artificial satellites? (1) Micro waves (2) Radio waves (3) A. M. (4) Frequency of 1016 series
Last Answer : (1) Micro waves Explanation: For fixed (point-to-point) services, communications satellites provide a microwave radio relay technology complementary to that of communication cables. They are also used ... is extensively used for point-to-point telecommunications (i.e., non broadcast uses).
Description : Which among the following waves is used for communication by artificial satellites ? (1) Micro waves (2) Radio waves (3) A. M. (4) Frequency of 1016 series
Last Answer : Micro waves
Last Answer : Discover the synthetic radioactive element (Julio Curie)
Last Answer : Discover artificial genes (Hargobind Khorana)
Description : The artificial activity which indicates that an activity following it, cannot be started unless the preceding activity is complete, is known as (A) Event (B) Free float (C) Dummy (D) Constrain
Last Answer : (C) Dummy
Last Answer : Discover Radio (G. Marconi)
Description : Radio activity is due to – (1) unstable nucleus (2) stable nucleus (3) stable electronic configuration (4) stable electronic configuration
Last Answer : (1) unstable nucleus Explanation: Radioactivity is caused by unstable nuclei trying to become stable by emitting particles and or energy. The nuclei of radioactive substances are unstable due to an unstable ratio of protons to neutrons.
Description : What is Radio activity?
Last Answer : Radio activity is the spontaneous disintegration of atomic nuclei. The nucleus emits ALPHA particles, BETA particles, GAMA particles or electromagnetic rays during this process.
Description : Radio activity is due to (1) unstable nucleus (2) stable nucleus (3) stable electronic configu-ration (4) stable electronic configu-ration
Last Answer : unstable nucleus