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The decay constant (lambda) for radioact...

The decay constant `(lambda)` for radioactive decay is independent of

A

amount of radioactive substance

B

temperature

C

pressure

D

all of these

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Define decay constant

The decay constant of a radioactive element is defined as the reciprocal of the time interval after which the number of atoms of the radioactive element falls to neraly

A radioactive element A of decay constant lamda_(A) decays into another radioactive element B of decay constant lamda_(B) . Initially the number of active nuclei of A was N_(0) and B was absent in the sample. The maximum number of active nuclei of B is found at t=2. In 2//lamda_(A) . The maximum number of active nuclei of B is

Using the equation N = N_(0)e^(-lambdat) , obtain the relation between half-life (T) and decay constant (lambda) of a radioactive substance.

The decay constant of the end product of a radioactive series is

Tritium undergoes radioactive decay giving

Many unstable nuclie can decay spontaneously to a nucleus of lower mass but differnet combination of nucleons. The process of spontaneous emission of radiation is called radioactivity substance. Radioactive decay is a statistical process. Radiaactivity is independent of all external conditions. The number of decays per unit time or decay rate is called activity. Activity exponentially decrease with time. Mean lifetime is always greater than half-life time. n number of alpha -particels per second are being emitted by B atoms of a radioactive element. The half-life of element will be

Many unstable nuclie can decay spontaneously to a nucleus of lower mass but differnet combination of nucleons. The process of spontaneous emission of radiation is called radioactivity substance. Radioactive decay is a statistical process. Radiaactivity is independent of all external conditions. The number of decays per unit time or decay rate is called activity. Activity exponentially decrease with time. Mean lifetime is always greater than half-life time. Choose the correct statemnet about radioactivity:

The decay constant of a radioactive substance is 0.693 per minute. What will be the half-life and mean life of it?

Many unstable nuclie can decay spontaneously to a nucleus of lower mass but differnet combination of nucleons. The process of spontaneous emission of radiation is called radioactivity substance. Radioactive decay is a statistical process. Radiaactivity is independent of all external conditions. The number of decays per unit time or decay rate is called activity. Activity exponentially decrease with time. Mean lifetime is always greater than half-life time. If T_(H) is the half-life and T_(M) is the mean life. Which of the following statement is correct.

AAKASH INSTITUTE ENGLISH-TEST 1-EXAMPLE
  1. A solution of 18%(mass/vol)glucose is isotonic with x%(mass/vol) KCl s...

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  2. Let gas (A) present in air is dissolved in 20 moles of water at 298K a...

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  3. The decay constant (lambda) for radioactive decay is independent of

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  4. Which of the following is not an application of adsorption?

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  5. Select the incorrect statement among the following.

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  6. Among the seven crystal systems,how many systems have body-centred uni...

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  7. When temperature of a reaction is raised from 17°C to 27°C,the rate of...

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  8. Identify the process in which heterogeneous catalysis is involved

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  9. During the electrolysis of water,if 11.2 litre H2 is obtained at S.T.P...

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  10. On diluting aqueous solution of weak electrolyte to 100 times

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  11. Which among the following has the highest melting point?

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  12. Identify the correct naming for K2[PdCl4].

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  13. If DeltaG° value of fuel cell using C4H10 and O2 is -2.6×10^6J,then E°...

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  14. Select the incorrect statement among the following

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  15. The resistance and specific conductance of 0.1M solution of an electro...

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  16. Among the given properties of solution,how many are colligative proper...

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  17. The most alkaline hyroxide among the following is

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  18. Copper matte contains

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  19. Copper sol is most easily precipitated by

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  20. For the galvanic cell Mg(s)|Mg^(2+)(aq)||Zn^(2+)(aq)|Zn(s),the standar...

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