Physics U4 & HW
Quiz yourself by thinking what should be in
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| X-ray wavelength is: | show 🗑
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| show | They have equal wavelengths
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| show | the wavelength decreases to 1/10
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| A single unit of electromagnetic radiation is also called a/an: | show 🗑
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| show | Its frequency decreases with increasing wavelength
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| The frequency of electromagnetic radiation is | show 🗑
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| When one uses the sine wave as a model | show 🗑
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| show | frequency times wavelength is a constant
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| show | Velocity
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| The amplitude of a sine wave is its | show 🗑
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| show | the number of valleys that pass per second
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| The wave equation is described as follows | show 🗑
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| show | Low energy and long wavelengths
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| The principle difference between x-rays and gamma rays are their | show 🗑
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| Radiation emitted from a standard radio broadcast antenna | show 🗑
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| For any electromagnetic radiation | show 🗑
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| show | 20 keV x-rays will be emitted
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| Which of the following characteristics is the same for both ultraviolet radiation and microwaves? | show 🗑
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| show | Weighed
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| X-rays can be | show 🗑
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| show | X-rays and radar with the speed of light in a vacuum
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| Which of the following is not a characteristic of the wave model of radiation? | show 🗑
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| Which of the following most closely represents the term attenuation? | show 🗑
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| show | lung tissue is radiolucent
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| The development of modern quantum mechanics is attributed to | show 🗑
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| According to quantum mechanics the energy of an x-ray is | show 🗑
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| show | It sometimes behaves like a wave
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| . Visible light | show 🗑
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| Which of the following terms is not associated with visible light interaction? | show 🗑
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| Which statement about visible light is correct? | show 🗑
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| In radiographs of bony structures embedded in soft tissue the bone is | show 🗑
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| Which of the following statements about photon interaction is true? | show 🗑
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| show | Microwaves
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| show | frequency
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| Which of the following types of electromagnetic radiation interacts with matter such as a particle? | show 🗑
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| At what level should visible light interact most readily? | show 🗑
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| A source of99mTe produces a radiation intensity of 150mR/hr. at 10mR. At what distance does the exposure rate equal to 1000mR/hr.? | show 🗑
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| If the exposure rate 1m from a source is 9 mR/hr. what is the exposure rate 3, from the source? | show 🗑
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| show | intensity is inversely proportional to the square of the distance
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| show | Divergence
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| show | Point
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| Which of the following emissions is likely to obey the inverse square law? | show 🗑
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| show | Two distances and one intensity
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| If the distance from a point source is tripled the intensity will be | show 🗑
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| If an instrument positioned 1m from appoint source is moved 50 cm closer to the source the radiation intensity will be | show 🗑
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| The distance from the earth to the sun is approximately 150 million km. If the earth were orbiting the sun at 50 million km the solar intensity on the surface of the earth would be | show 🗑
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| show | 25 mR/hr.
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| show | 400 R/hr.
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| A radiographic technique produces a patient dose of 200 mrad at a source to skin distance of 80 cm. What would the patient dose be at an SSD of 160 cm if the technique remains the same | show 🗑
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| A radiographic technique produces an exposure of 200 mR at a source to image receptor distance of 100 cm. What would the exposure rate be at an SID of 180 cm? | show 🗑
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| A radiograph produced at an SID of 100 cm results in an exposure of 100mR. What would be the exposure if the SID were reduced to 90 cm? | show 🗑
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| show | Superficial X-rays
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| show | Reflection
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| Given two x-rays, one of 50keV and the other at 70keV x-ray, the 70 keV has | show 🗑
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| show | Velocity is the speed of light
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| The energy of an x-ray photon is directly proportional to its | show 🗑
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| Which of the following is greater for a 30 keV x-ray than a 60keV x-ray | show 🗑
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| Which of the following electromagnetic radiations is in the diagnostic x-ray region | show 🗑
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| show | they are deflected by a very strong magnet
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| x-ray photons | show 🗑
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| The energy of an x-ray | show 🗑
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| The model used to describe an x-ray photon | show 🗑
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| which of the following characteristic is the same for both x-ray photons and light photons | show 🗑
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| X-rays | show 🗑
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| Diagnostic x-rays are | show 🗑
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| An x-ray can be correctly called a | show 🗑
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| 4 Properties of a Photon: | show 🗑
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| show | Bundle(amount) of energy
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| Define x-ray photon: | show 🗑
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| 1/2 the range from crest to valley over which the sine wave varies. | show 🗑
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| show | The very top(crest) of the amplitude portion of the sine wave
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| show | 2
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| How many cycles in 1 second? | show 🗑
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| show | 120
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| Where on the sine wave of voltage does voltage measure 0? | show 🗑
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| The sine wave portion above the time line represents what? | show 🗑
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| show | Forward; Backward
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| show | Alternation
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| show | Frequency
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| show | Sinθ
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| show | How often the crest occurs; nu; hertz
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| show | Crests of a wave; λ-lambda; Å-Angstrom
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| show | Lambda min= Minimum wavelength=strongest photon in the beam of radiation
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| show | Inversely proportional
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| show | C=μλ
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| show | Visible light Radio Frequency x-Radiation
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| Electromagetic spectrum from longest wavelength: lowest frequency to shortest wavelength: Highest frequency | show 🗑
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| When pure energy acts as though it has the characterists of matter: | show 🗑
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| Term for light deviated from its line of travel: | show 🗑
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| show | Radiopaque; clear or light area
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| show | Radiolucent; Dark
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| What does the Particle Model: Quantum Theory state: | show 🗑
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| According to the Particle Model: Quantum Theory, x-rays are directly proportional to what? | show 🗑
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| show | Energy can never be created or destroyed: E=mc²
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