Assume the intensity of radiation measured at a distance from a radioactive source follows an inverse-square relationship. If 100 counts per minute are detected when the source is 20 cm from the Geiger tube, how many would be detected if the source were 10 cm from the Geiger tube?

Q: An accident in a laboratory results in a room being contaminated by a radioisotope with a half-life…

A: Half life radioisotope =t= 8days . Let maximum permissible level be = N⁰ then , radiation emissions…

Q: An accident in a laboratory results in a room being contaminated by a radioisotope with a half-life…

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Q: A drug prepared for a patient is tagged with 4399Tc, which has a half-life of 6.05 h. The dose…

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Q: A thyroid cancer patient is given a dosage of 131 I (half-life=8.1 d) What fraction of the dosage of…

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Q: A Geiger- Mueller counter registers an initial reading of 3200 counts while measuring a radioactive…

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Q: Two patients are diagnosed for radiation exposure. Patient 1 received an accidental radiation dose…

A: Dose Equivalent can be represented as followsDose Equivalent = Radiation dose * Relative Biological…

Q: If a rock containing U-238 initially reads 37.2 counts per minute on a Geiger counter, what will its…

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Q: We use a Geiger counter to measure RT, the total counting rate (in counts per minute) due to a…

A: We need to justify wheater the given statement is true or false.

Q: What type(s) of nuclear radiation do not alter the nucleus' total number of nucleons?

A: Nucleons of an atom are a part of its nucleus. The total number of protons and neutrons is known as…

Q: A beam of 168 MeV nitrogen nuclei is used for radiotherapy. If this beam delivers a 2.00 Sv dose to…

A: Given: Energy of beam (E) = 168 MeV. Of nitrogen nuclie. Relative biological effectiveness (R.B.E.)…

Q: You go to the doctor and he gives you 13 milligrams of radioactive dye. After 24 minutes, 7.75…

A: Given, An initial dose of the dye, N0=13mg After 24 minutes 7.75mg of the dye remains.…

Q: Which of the following radioactive doses would deliver the most energy to a patient? Dose A delivers…

A: Given;- A delivers 6 mrad with an RBE of 3, dose B delivers 9 mrad with an RBE of 2, and dose C…

Q: A Geiger counter registerss a count rate of 6,800 counts per minute from a sample of a radioisotope.…

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Q: A certain biological sample is given a dose of 7.50 rad from alpha particles. (WR = 20) Calculate…

A: Given :- a dose of 7.50 rad from alpha particles WR = 20 Equivalent dose HT  = absorbed dose * WR =…

Q: What time interval elapses while 51.0% of the radioactivity of a sample of 7233As disappears, as…

A: As per given data, 51% of the radioactivity of a sample disappears.

Q: 131I is a Beta - emitter used as a tracer for radioimmunoassay in biological systems. (a) Write the…

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Q: We use a Geiger counter to measure the YT, the total yield (in counts) due to a radioactive source…

A: Given that: Total yield=YTBackground Yield=YBWhether true or false:The uncertainty (σ) in the…

Q: Hey certain radioactive isotope has a half-life of 90 days. How long will it take for the radiation…

A: Given value--- half life time = 90 days. We have to find--- How long will it take for the…

Q: We use a Geiger counter to measure YT, the total yield (in counts) due to a radioactive source with…

A: Everyone on the Earth is exposed to background radiation. The three primary sources of background…

Q: what type of radioactive source would you use to treat deep-seated brain tumors-alpha , beta, or…

A: To explain : The type of radioactive source used to treat deep-seated brain tumors

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.