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प्रश्न
Unit of radioactivity is _______
पर्याय
roentgen
curie
becquerel
all the above
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उत्तर
All the above
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
A radioactive nucleus `""_"Z"^"A"` X first emits a beta particle and then an alpha particle to give the resulting nucleus `""_"Q"^"P"` Y What will be the values of P and Q in terms of A and Z?
What is nucleus of an atom? Compare its size with that of the atom. Name its constitutents. How is the number of these constituents determined by the atomic number its atomic model.
A nucleus is \[\ce{^24_11 Na}\] β-radioactive.
Write the equation represent β-decay.
What are cathode rays? Why are they called ‘cathode rays’? Name a material which exhibits fluorescence when cathode rays fall on it.
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
How is a cathode ray tube used to convert an electrical signal into a visual signal?
Explain, why radium paint, consisting of zinc sulphide and a trace of radium salt, glows in the dark?
While investigating which phenomena was Becquerel studying uranium salts when he discovered radioactivity?
