What happens when a gamma ray strikes living tissue?

Q: What radioactive isotope is used to target thyroid cancer? cobalt carbon iodine O polonium

A: What radioactive isotope is used to target thyroid cancer ?

Q: Do humans receive more radiation from artificial or from natural sources of radiation?

A:

Q: What is the effect of gamma rays

A:

Q: A Geiger counter registers a count rate of 8,000 counts per minute from a sample of a radioisotope.…

A: Activity A=A0e-0.693tT12AA0=e-0.693tT12lnAA0=-0.693tT12T12=-0.693tlnAA0       =-0.69324 minln1000…

Q: A Geiger counter registers a count rate of 5,600 counts per minute from a sample of a radioisotope.…

A: The count rate is 1400 counts per minute. The initial count rate is 5600 counts per minute.…

Q: Why are gamma rays not deflected in a magnetic field?

A: Given: gamma rays

Q: A Geiger counter registers a count rate of 8,000 counts per minute from a sample of a radioisotope.…

A: A Geiger counter registers a count rate of N0 = 8000 per minute. After time t = 10 minutes, the…

Q: What are cobalt gamma rays? Give their uses.

A: Cobalt-60 at higher excited states converts to Nickel-60 by beta emission to stabilize itself.…

Q: Why are gamma rays the most penetrating rays?

A: Gamma rays are the electromagnetic waves with highest frequency.  Energy of electromagnetic wave is…

Q: Suppose that you measure the intensity of radiation from carbon-14 in an ancient piece of wood to be…

A: Given:  N = 6 % of No  half life,T = 5730 years

Q: Why are alpha and beta rays deflected in opposite directions in a magnetic field? Why are gamma rays…

A:

Q: Explain the emission of high-energy beta particles

A: Beta particles have same mass and charge as electron. It only differs from electron in its origin.

Q: What characteristics of a material will make it a better absorber of gamma rays?

A: The characteristics of material that will make it a good gamma absorber is high density and high…

Q: Compare a low dose of radiation to a human with a low dose of radiation used in food treatment.

A: When a low intensity radiation is given to a human body, then it only detects the inner part of body…

Q: X-rays are most similar to which of the following—alpha, beta, or gamma rays?

A: X-rays are the neutral radiations, which have highest range due to their neutral nature. They excite…

Q: Which of the following tissues absorbs most radiation? O Bone Muscle Blood Air cases O Soft tissue

A: Cells which produce blood including white blood cells are most sensitive to radiation.

Q: What are Alpha Particles?

A: Alpha particles are positively charged particles .

Q: What happens when gamma radiations are passed through a magnetic field?

A: Gamma particles will not get affected by the electric field, because, it is charge-less particles.

Q: What is the source of the most radiation for an average person?

A: Radiations are the transfer of the energy in the form of the electromagnetic wave through any medium…

Q: What is the influence of magnetic field on gamma radiation

A: Radioactive element decays and it gives the alpha, beta and gamma radiation. Gamma rays are a type…

Q: What holds the nucleus together?

A: Nucleus: A nucleus is a group which mainly consists of two bodies that are proton and neutron. The…

Q: Why is radiation therapy used in treating cancer, when it can also cause cancer?

A: Radiation causes cancer but the effect of radiation on a patient of cancer is different. Radiation…

Q: Which type of radioact O Beta None of the above O Gamma O Alpha

A: Answer  The correct option is (c) ie gamma rays .

Q: Which is more dangerous in terms of short-lived exposure to radiation? One mole of

A: Half life of a radioactive element indicates the time taken to become half of the element.Smaller…

Q: On which factors does effects of ionizing radiation depends?

A: Introduction: The ionizing radiation is an electromagnetic wave that has sufficient energy to ionize…

Q: What are examples of gamma rays?

A: Gamma rays is a type of electromagnetic radiation and it is also known to penetrate electromagnetic…

Q: How do the paths of alpha, beta, and gamma rays compare in an electric field?

A: Alpha is positively charged. Beta is negatively charged. Gamma not charged

Q: When food is irradiated with gamma rays from a cobalt- 60 source, does the food become radioactive?…

A: Food does not become radioactive. The main aim of irradiating food is to protect food from spoiled…

Q: Let us say you are standing 25 meters from a radioactive source and are exposed to 120mrem/hr of…

A: I1=120 mrem/hd1=25 mx=4 in=10.16 cm=0.1016 md2=40-x=39.8984 m Calculate the intensity of radiation…

Q: A Geiger  counter registers a count rate of 8000 counts per minute from a sample of a radioisotope.…

A: count rate at t=0 is Ao =8000 counts/min count rate at t=24 is A=1000 counts /min

Q: The alpha radiation is not used in radiotherapy because: [A] It is an ionizing radiation [B] It is…

A: Among the three radiations, alpha, beta and gamma, the penetrating power is least for alpha…

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.