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Mdcat-past-papers Quiz

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1441. The unit of decay constant is;



1442. Half life of a radioactive sample is given by:



1443. In beta positive decay, the nuclear number is;



1444. Half life of radon gas is:



1445. When two negative Beta particles are emitted from a nucleus then the mass number :



1446. A 40 gm radioactive material is placed in a chamber, having a half-life of 20 days. How much will be left after 80 days :



1447. Which of the following electromagnetic radiation has the highest penetrating power ?



1448. Which photon carries the most energy?



1449. Which x-ray photon will have longest wavelength?



1450. The half-life of Iodine-131 is:



1451. The half-life of carbon is 5730 years. How much carbon will left after 22920 years?



1452. He represents:



1453. The half life of Iodine-31 is:



1454. The relation between the decay constant λ and the half-life T₁/₂ is:



1455. 1 becquerel is equal to:



1456. The half life of a radioactive sample predicts about:



1457. Radioactivity does not depend upon:



1458. The radiation emitted by warm-blooded animals lies in the region of:



1459. An electron will have maximum kinetic energy when it has:



1460. At the end of 14 minutes, 1/16 of a sample of radioactive polonium remains. The corresponding half-life is: