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What is the relation between half-life a...

What is the relation between half-life and decay constant of a radioactive isotope ?

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`lambda="In 2"/T`
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Statement 1: The greater the decay constant of a radioactive element, the smaller is its half-life. Statement 2: An element, although radioactive, can last longer, if its decay with time is slow. (A) Statement 1 is correct, Statement 2 is correct. But, Statement 2 is not the correct explanation of Statement 1. (B) Statement 1 is correct, Statement 2 is correct. Statement 2 is the correct explanation of Statement 1. (C) Statement 1 is correct, Statement 2 is incorrect. (D) Statement 1 is incorrect, Statement 2 is correct.

What do you mean by half-life of a radioactive substance ?

CHHAYA PUBLICATION-ATOMIC NUCLEUS-EXERCISE
  1. What is the difference in the properties of the two carbon isotopes C^...

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  2. What is the approximate ratio of the penetrating power of alpha,beta a...

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  3. What is the relation between half-life and decay constant of a radioac...

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  4. When a beta-particle is emitted from the radioactive isotope .15P^32 ,...

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  5. When an alpha - particle is emitted from a uranium nucleus (atomic no....

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  6. What are the atomic number and the mass number of the plutonium isotop...

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  7. Which fundamental particle was first discovered from artificial trans...

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  8. .1H^2 + .1H^3 to .2He^4 +

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  9. Write down the decay scheme of a free neutron

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  10. .1H^1 + .1H^1 + .1H^1 + .1H^1 to .2He^4 + 2 .

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  11. What are thermal neutrons ? Why are neutrons considered as ideal parti...

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  12. What are the basic differences between natural and artificial radioac...

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  13. .1H^2 + .1H^2 to .2He^4+Q. In this reaction the masses of deuterium an...

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  14. What are the similarities and dissimilarities of the nuclei of two iso...

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  15. An artificial radioisotope .15P^31 can be prepared by disintegrating ....

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  16. From the nucleus of a Polonium atom .84Po^218, an alpha-particle and t...

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  17. In a radioactive disintegration a nucleus emits an alpha-particle firs...

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  18. Mass of a proton or a neutron is approximately 939 MeV, but unified at...

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  19. Half-life of radium is 1622 years'- what do you mean by this statement...

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  20. Positively charged protons and neutral neutrons are packed inside the ...

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