TVUUUIE Z ASsessment Single choice 11) The intensity or exposure of a source is 450 mR/hr at a distance of four yards. What will the exposure be at a distance of nine feet? 800 mR/hr O 1012.50 mR/hr O 200 mR/hr O 88.89 mR/hr

TVUUUIE Z ASsessment Single choice 11) The intensity or exposure of a source is 450 mR/hr at a distance of four yards. What will the exposure be at a distance of nine feet? 800 mR/hr O 1012.50 mR/hr O 200 mR/hr O 88.89 mR/hr

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter31: Radioactivity And Nuclear Physics

Section: Chapter Questions

Problem 48PE: Data from the appendices and the periodic table may be needed for these problems. Mantles for gas...

See similar textbooks

Related questions

Q: A work area at bench level is to be illuminated to a value of 300 Lux, using 85 W single fluorescent…

A: Total power required= (300×10×8)/(0.6×0.8) Total power required= 50000 W Since the efficiency is…

Q: Parallax error is zero in analogue meter Select one: True False

A: Parallax error is apparent change in the position of object due to change in observation point .

Q: Given temperature of 37.3 0.05 What is uncertainty percentage of this temperature? а. 1 b. 0.1 с.…

Q: 1) plot the data on the graph paper 2) Find the equation that best fits the relationship between…

A: Part (1) The graph is as shown below:

Q: QI: Assume that V is a function of y and at y 2, V=5 volt and at y 4, V = 10 volt. a) Find V, E, E…

A: Given: Here we assume that V is the function of y.When y=2,V is varies as V=5 voltsand when…

Q: CUIT 2V = 7 70 100 I 0 mA 200 100 mA 100 mA DAY 1, 09:06 PROGRESS: 62% Fill in the missing…

A: In a series circuit the current is the same at any particular point on the circuit and the sum of…

Q: Which of the following dosimeters related optical density: Select one:

A: Introduction: A dosimeter is a device that measures directly or indirectly exposure, kerma, absorbed…

Q: Ex-3 The ualume of oil cantained ma certain =hydraulic press is 5ft3. find the decrease in volume…

A: Given: Volume of oil, V=5 ft3=535.315=0.141 m3 Pressure, P=2000 lb/m2=136 atm Compressibility of…

Q: Design Layout References Mailings Review View Tell me what you want to do... Α Α΄ Aa ▾ 2 T AaBbCcI…

A: Since sinθ , cosθ and tanθ are unknown we can easily calculate their values by substituting the…

Q: 1. The laboratory is equipped to perform flow cytometry. Which of the following descriptions best…

A: 1. The correct description is C. Flow cytometry is a technique that involves passing cells through a…

Q: 3. Using values in the diagram derive an expression for r m F = mv/r F= kQq/r?

A: Centripetal force is given by Fc=mv2r…

Q: 9) If you are given a reading of V-2.0+/-0.2 Volts. What is the uncertainty of this measurement?

A: Given : V = 2.0 ± 0.2 Volts It is known that if a reading is given as : ( a + δa ) , then 'a' is…

Q: A gamma camera that is used for SPECT imaging is shown. Given the dimensions in he figure, calculate…

A: I have written this solution as handwritten solution. Hope you find the perfect solution.

Q: The accepted value of the density of aluminum is 2.70 g/cm3 while our computed value is 2.8 g/cm3…

A: Accepted value = 2.70 g/cm³Computed value is 2.8 g/cm3Percent uncertainty = ?

Q: 1.External Dosimetry is applicable to two types of radiations? 2.What type of material shield?

A: Radiation The energy that emanates from a source and moves through space at the speed of light is…

Q: 4. A company manufactures LED light bulbs. The lifetime for these bulbs is 4,600 hours with a…

A: I have used concept of z-score

Q: 1. Calculate the number of radiation modes in a cube 1 mm on a side for a spread of 0.001 nm…

A: Write the equation of number of radiation modes.On differentiating, we getHence, the number of modes…

Q: What is Bragg’s law? Write the working principle of XRD analysis based on which the characterization…

A: History Bragg Law The Bragg law was first formulated by Lawrence Bragg, an English Physicist and…

Q: Could you please express how to describe MHD equations when the mu(magnetic permeability) and…

A: Given; The objective is to describe MHD equation when the magnetic permeability and gamma are not…

Q: 2. * Discuss propagation of errors in an experiment. Discuss an experimental design that calculates…

A: There are many types of errors. Some are random errors. Some are systematic error. Some are…

Q: Explain the difference between accuracy and precision of a measurement. Which of these aspects will…

A: When obtaining data measurements, accuracy and precision are two critical things to consider.…

Q: For the point light source of light, what is the irradiance measured at 1m and 2m from a 1W light…

Q: Which of the following choices is not an advantage of a lab experiment compared with a field…

A: Experimental method is a method in which we manipulate the variables to setup cause and effect…

Q: A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of…

A: Given data: Angle between ramp and force is θ=30.0o Inclination of ramp from surface is α=20.0o…

Q: 7. A PET scanner is built with 360 detectors around a ring, spaced 1° apart. They are numbered 1 on…

Q: A certain radar installation that is used to track airplanes trasmits electromagentic radiation…

A: Time taken by pulse to reach airplane and to return is,

Q: 5 - Based on the figure below, determine: h h 2p h A A) Find range of A Cin terms of h)

Q: 1.1) A star has a radius of three times the Sun's radius, and an average number density of ions a…

A: Given data R2=3R1n2=1.75 n1

Q: Set up the spectrometer, finding an appropriate integration time, number of scans to average and…

A: We have given that, a spectrometer is set up, finding an appropriate integration time, number of…

Q: The photon energies used in different types of medical x-ray imaging vary widely, depending upon the…

A: Given: Energy of single dental X ray E = 25 keV.

Q: What is sweep time of a scan with a sweep rate of 60 Hz?

A: Given data The sweep rate is: f = 60 Hz The expression for the sweep time is given as: T=1f

Q: For the equation 3Cu + 8HNO3-3Cu(NO3)2 + 2NO + 4H20, how many units of NO3 are represented on the…

A: NO3 are represented on the products side

Q: Using the method of separation of symbols, show that n(n-1) 2 -Ux-2+...+(-1)" ux-n² Aux-n=ux-nux-1 +

A: To prove- ∆nux-n=ux-nux-1+n(n-1)2ux-2+....+(-1)nux-n We have- Using the method of separation of…

Q: Q 1. (i) Write the specific type of instrument as shown in figure 1.? (ii) How are the ions produced…

A: Given: To find the given things with the figure is shown as, As per rule, allowed to answer three…

Concept explainers

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.

Question

Singie choice
11) The intensity or exposure of a source is 450 mR/hr at a distance of four yards. What will the exposure be at a distance of nine
feet?
O 800 mR/hr
O 1012.50 mR/hr
O 200 mR/hr
O 88.89 mR/hr

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The count rate for a particular a source X is C0 on a detector placed 1 m from the source. When a metal sheet of thickness 5mm is placed between source and counter the count rate drops by 75%. What is the value of the attenuation coefficient, μ, for this radiation and metal? Select one: a. 0.12 mm-1 b. 0.277 mm-1 c. 3.01 mm d. 6.93 mm
help plz
1.1) A star has a radius of three times the Sun's radius, and an average number density of ions a factor of 1.75 higher than that of the Sun. How much time does it take on average for photons to travel across this star compared with the Sun?
What are the SI units of ?
CT scanners do not detect details smaller than about 0.5 Is this limitation clue to the wavelength of x lays? Explain.
Data from the appendices and the periodic table may be needed for these problems. Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to incandescence for long periods of time. Natural thorium is almost 100% 232Th.
Prove that, to three-digit accuracy, h=4.141015eVs, as stated in the text.
An excited nucleus emits a gamma-ray photon with an energy of 2.55Mev. a) what is the photons energy in joules? b) what is the photons frequency (in hertz). C) what is the photons wavelength? (In metres).
A photon has an energy of 1.9 meV (milli electron Volt). What is the wavelength of this photon, expressed in micrometers? Keep four significant digits. And the answer is NOT 6.543
A light bulb emits the energy at a rate 16 n W. Treating the bulb as a point source, what is the irradiance at a distance of 2 m from the bulb? (Units in W/m2) Answer:
Q 1. (i) Write the specific type of instrument as shown in figure 1.? (ii) How are the ions produced in the ionization chamber accelerated? (iii) What two properties of the ions determine how much they are deflected by the magnetic field? (iv) Why is it important that there is a vacuum in the instrument? Storage chamber Gas inlet Manometer To vacuum lonising electron beam Collector Resolving slit Molecular leak lon source 60° Ocillograph Accelerating region DC | amplifier uh Mass spectrograph Magnet Analyser tube Figure 1.
Calculate the wavelength λ1 for gamma rays of frequency f1 = 6.10×1021 Hz so that gamma-ray wavelength is expressed in nanometers. (1*10^-9 nm/m)