Log In Start studying!

Select your language

Suggested languages for you:
Deutsch (DE)
Deutsch (UK)
Deutsch (US)

Americas

Europe

Answers without the blur. Sign up and see all textbooks for free! → Illustration

Q10 CQ

Expert-verified
College Physics (Urone)
Found in: Page 1147
College Physics (Urone)

College Physics (Urone)

Book edition 1st Edition
Author(s) Paul Peter Urone
Pages 1272 pages
ISBN 9781938168000

Answers without the blur.

Just sign up for free and you're in.

Register for Free I’ll do it later
Illustration

Short Answer

Is it possible for light emitted by a scintillator to be too low in frequency to be used in a photomultiplier tube? Explain.

It would be no use.

See the step by step solution

Step by Step Solution

TABLE OF CONTENTS :
TABLE OF CONTENTS

Step 1 Definition of photomultiplier tubes

Photomultiplier tubes, also known as electron multiplier tubes, are used to measure low light intensities by multiplying electrons by secondary emission. It can be used to measure the brightness of dim stars in astronomy, television camera tubes, and nuclear investigations to find and quantify tiny light flashes.

Step 2: Light emitted by scintillator

We know that when beam of photons strikes the metal then electrons are emitted. Only condition that matters is that the frequency of the light photons should be threshold frequency or more that.

So if the light emitted by scintillator has very low frequency, then no electrons would be emitted from the metal plate in the photomultiplier tube. Therefore it would be no help to use light of very low frequency in a photomultiplier tube.

Therefore, It would be no use.

Most popular questions for Physics Textbooks

Unreasonable Results

  1. Repeat exercise but include the \({\rm{0}}{\rm{.0055 \% }}\) natural abundance of \(^{{\rm{234}}}{\rm{U}}\) with its \(2.45 \times {10^5}\) y half-life.
  2. What is unreasonable about this result?
  3. What assumption is responsible?
  4. Where does the \(^{{\rm{234}}}{\rm{U}}\) come from if it is not primordial?

Consider the generation of electricity by a radioactive isotope in a space probe, such as described in exercise. Construct a problem in which you calculate the mass of a radioactive isotope you need in order to supply power for a long space flight. Among the things to consider are the isotope chosen, its half-life and decay energy, the power needs of the probe and the length of the flight.

An old campfire is uncovered during an archaeological dig. Its charcoal is found to contain less than \(1/1000\) the normal amount of \({}^{{\rm{14}}}{\rm{C}}\). Estimate the minimum age of the charcoal, noting that \({2^{10}} = 1024\).

α decay of 226Ra ,another isotope in the decay series of 238U , first recognized as a new element by the Curies. Poses special problems because its daughter is a radioactive noble gas. In the following four problems, identify the parent nuclide and write the complete decay equation in the \(_{\rm{Z}}^{\rm{A}}{{\rm{X}}_{\rm{N}}}\) notation. Refer to the periodic table for values of Z .

Construct Your Own Problem

Consider the decay of radioactive substances in the Earth's interior. The energy emitted is converted to thermal energy that reaches the earth's surface and is radiated away into cold dark space. Construct a problem in which you estimate the activity in a cubic meter of earth rock? And then calculate the power generated. Calculate how much power must cross each square meter of the Earth's surface if the power is dissipated at the same rate as it is generated. Among the things to consider are the activity per cubic meter, the energy per decay, and the size of the Earth.

Icon

Want to see more solutions like these?

Sign up for free to discover our expert answers
Get Started - It’s free

Recommended explanations on Physics Textbooks

Work Energy and Power

Read explanation

Radiation

Read explanation

Astrophysics

Read explanation

Physics of Motion

Read explanation

Scientific Method Physics

Read explanation

Fluids

Read explanation

Torque and Rotational Motion

Read explanation

Nuclear Physics

Read explanation

Fields in Physics

Read explanation

Measurements

Read explanation

Space Physics

Read explanation

Electricity

Read explanation

Physical Quantities and Units

Read explanation

Medical Physics

Read explanation

Electrostatics

Read explanation

Further Mechanics and Thermal Physics

Read explanation

Mechanics and Materials

Read explanation

Engineering Physics

Read explanation

Energy Physics

Read explanation

Force

Read explanation

Particle Model of Matter

Read explanation

Waves Physics

Read explanation

Magnetism

Read explanation

Modern Physics

Read explanation

Atoms and Radioactivity

Read explanation

Dynamics

Read explanation

Electricity and Magnetism

Read explanation

Conservation of Energy and Momentum

Read explanation

Fundamentals of Physics

Read explanation

Kinematics Physics

Read explanation

Circular Motion and Gravitation

Read explanation

Linear Momentum

Read explanation

Rotational Dynamics

Read explanation

Oscillations

Read explanation

Translational Dynamics

Read explanation

Geometrical and Physical Optics

Read explanation

Thermodynamics

Read explanation

Magnetism and Electromagnetic Induction

Read explanation

Electromagnetism

Read explanation

Electric Charge Field and Potential

Read explanation

Turning Points in Physics

Read explanation

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.