What was the code name given to the first explosion?
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Which of the following has the lease penetrating power? 1 Alpha particles 2 Beta particles 3 Gamma rays 4 All have the same penetrating power
Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
Which of the following gases is lighter than air? 1 Carbon dioxide 2 Oxygen 3 Ammonia 4 Chlorine
Who suggested that most of the mass of the atom is located in the nucleus? 1 Thompson 2 Bohr 3 Rutherford 4 None of these
Which is the regulatory authority of atomic energy in india?
Amalgams are 1 Alloys which contain carbon 2 Alloys which have great resistance to abrasion 3 Alloys which contain mercury as one of the contents 4 None of these
In which year, atmospheric observations using balloons started?
Enriched uranium used in a nuclear reactor is 1 Uranium freed of all impurities 2 Uranium treated with radiation 3 Uranium alloyed with aluminum 4 Uranium with a high percentage of a particular isotope
The metal that is present in photo films is 1 Mercury 2 Platimnum 3 Magnesium 4 Silver
Why is ice wrapped in gunny sacks to prevent it from melting
Define science
0 Answers Mahatma Gandhi University,
How long can arihant stay underwater?
Biological Sciences 
