A team of u.n scientists visited thumba?
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How many colours the sunlight spectrum has ? 1 Five 2 Three 3 Seven 4 Nine
Name the scientist who has been invited by the Srilankan Governement to have a Study on Employment development?
According to Dalton’s atomic theory, the smallest particle which can exist independently is 1 An atom 2 A molecule 3 A cation 4 An anion
Who was the first cosmonaut?
The element required for solar energy conversion is 1 Beryllium 2 Silicon 3 Tantalum 4 Ultra pure carbon
Which comet collided with jupiter?
precautions to be observed while using electrical equipment
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?
iwant to learn robotics so how can iproceed
Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
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What is a nuclear triad?
Which of the following substances undergoes chemical change on heating? 1 Sodium chloride 2 Silica 3 Lead nitrate 4 Platinum wire