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प्रश्न
Name a gas caused by the Greenhouse effect
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उत्तर
A gas caused by the greenhouse effect is carbon dioxide.
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संबंधित प्रश्न
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
Name the unit in which the work function of a metal is expressed.
State any two precautions to be taken while handling radioactive substances
In a cathode ray tube state. How is it possible to increase the rate of emission of electrons.
The mean lives of a radioactive substance are 1620 and 405 years for β-emission and β-emission respectively. The time after which three fourth of a sample will decay if it is decaying both by β-emission and β-emission simultaneously will be ______ years.
(Take ln 2 = 0.693)
If 10% of a radioactive substance decays in every 5 years, then the percentage of the substance that will have decayed in 20 years will be ______.
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
