Please help with these questions (1, 2, 3)! Thanx so much!! The second page is t
ID: 1073509 • Letter: P
Question
Please help with these questions (1, 2, 3)! Thanx so much!! The second page is the experimental data. I only need help with the first page's questions. Thanx again!
Correct the radiation readings to account for the background radiation. Are the corrected count rates significantly different from the original readings in your data table? Explain why or why not. Do the corrected count rates support your initial hypothesis about the relative absorption of the various types of radiation by matter? Explain. X-rays are photons, just like gamma rays. X-rays can carry lower energy, however. When a dentist takes X-rays of your teeth, a lead-lined apron is placed on your chest and lap. What is the function of the lead apron? Support your answer with data from your testing.Explanation / Answer
1)
To correct the radiation readings we need to subtract background readings from Alpha source reading.
No shielding score is 13 and 7. We must remove background noise.
Therefore, answer will be 13 – 7 = 6
For paper and aluminum shielding there are no background readings. Therefore, those readings will stay same.
No shielding = 6
Paper shielding = 6
Aluminum shielding = 10
Corrected count rates are somewhat different from the original data table because background radiations were involved.
2)
Corrected count rates does support initial hypothesis. As we can see, no shielding count is highest of all. But when we add paper to the experiment count suddenly decreases and that to exact value of 6. Which shows alpha particles were emitted.
Relative absorption of alpha particles by paper and aluminum support our hypothesis strongly.
3)
There are three type of radiations, alpha, beta and gamma. Gamma rays have highest penetration power but can be stopped by lead. That’s why dentist use lead lined apron to protect us from harm of X-rays which are like gamma rays.