Where does the energy for the light come from

Assignment Help Physics
Reference no: EM131034741

The given hypothesis is a classical theory which tries to explain why a light bulb emits light. It is classical because it ignores the wave-like properties of atoms.

Hypothesis 1 Incandescent light comes from a tungsten filament encased in a glass bulb.

1. Electric current passes through the tungsten filament and heats it up.

2. Tungsten atoms vibrate randomly when heated. They move more when they are hotter.

Question 1. Use the fact that atoms are made of charged protons and electrons to explain why the random vibration produces light.

Question 2. Consider an experiment where you produce waves on a string by moving one end up and down with your hand. What is the relationship between the frequency of your hand (ie. the number of times per second you move your hand up and down) and the frequency of the wave on the string?

Question 3. What do you think is the relationship between the frequency of atomic vibration in the tungsten filament and the frequency of emitted light? Based on this hypothesis, what frequencies should be present in the light emitted by the filament?

Question 4. If the atoms are hotter, then we can expect that they will move faster and farther. What do you think that this would do to the brightness of the light? What about the color of the light?

Question 5. What is the energy transformation which occurs when light is produced? In other words, where does the energy for the light come from? Give answers in terms of both macroscopic and microscopic energies.

Reference no: EM131034741

Previous Q& A

  Method of producing its flak jackets

Warrior Wear Limited, a defense contractor, claims that it has a method of producing its flak jackets (“FJs”) that makes them puncture-proof regardless of the caliber of bullet or the power of the weapon used. The FJs account for eighty percent of Wa..

  Unrealistic deadlines for project completion

Prepare a 10-15 page Research paper on "Unrealistic Deadlines for Project Completion". In review of all of the aspects of Project Management, what one area do you believe will be your biggest challenge? Explain

  Exercise price of the contract

A put option was written at a premium of Rs. 400. The current market price of the stock is Rs. 38 and the exercise price of the contract is Rs. 35. After a period of two months the price of the stock is Rs. 30. The amount of the profit made by the..

  Concept of escalation of commitment

How does the concept of escalation of commitment factor into decisions of whether to terminate projects. Remember to cite your sources and list your references.

  Identifying several possible

Discuss the reasons for this state of affairs, identifying several possible IT solutions and their business benefits that could help small businesses be more successful The reason why small businesses have been slower

  Explain each of the labor laws

Explain each of the following Labor Laws. Be specific and define what each one mandated and its importance toward labor/unions or to the employers. An understanding of the laws is required.

  Which represents the cost of loss of goodwill

Annual demand for number 2 pencils at the campus store is normally distributed with mean 1,000 and standard deviation 250. The store purchases the pencils for 6 cents each and sells them for 20 cents each. The cost of a stockout is the cost of lost p..

  Provide the cost explanation for the benefit

1) Identify the benefits package you propose the Organization offer its employees. 2) Explain what the benefit is and how it works in your Organization. 3) Provide the cost explanation for the benefit .i.e. What the benefit cost as opposed to the r..

  Consider the problem of satisfying the demand

Consider the problem of satisfying the demand for number 2 pencils faced by the campus store mentioned in problem 29.

  Describe situation that would call for task oriented leader

Consider the findings from the Ohio State and Michigan studies: Good leadership requires effectiveness on two dimensions Initiating structure, commonly called task orientation, and showing consideration, commonly called employee orientation. Describe..

Reviews

Write a Review

 

Similar Q& A

  Obtain what is the magnitude of the magnetic field there

A long solenoid with 9.07 turns/cm and a radius of 7.04 cm carriesa current of 20.0 mA. What is the magnitude of the magnetic field there

  Calculate the mass of the unknown element

A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer. What is the mass of the unknown element

  In living tissue about one out of every 10-12 carbon atoms

in living tissue about one out of every 10-12 carbon atoms are the 14c isotope. if you were to discover a human bone

  Calculate the charge enclosed by a concentric surface

An insulating sphere is 8.00cm in diameter and carries a charge of 5.1uC throughout interior volume. Calculate the charge enclosed by a concentric spherical surface

  Obtain the torque on the loop

A 14 centimeter diameter circular wire loop carries a current of 2.7 Amp. Obtain the torque on the loop in a 1.4 T magnetic field directed perpendicular to the loop

  The flash unit in a camera uses a special circuit to step

the flash unit in a camera uses a special circuit to step up the 3.0 v from the batteries to 370 v which charges a

  Magnetic induction vanishes on the axis of the wire

By using Ampere's circuital law, discover the magnetic induction at distance r from the center of a long wire carrying current I. Do so for both r > R and r

  Find what is the charge on each plate

Calculate the capacitance of a capacitor whose plates a 20.0 cm by 3.0 cm and are separated by a 1.0mm air gap. What is the charge on each plate if the capacitor is connected to a 12.0 V battery

  Balls repel each other therefore that the separation

Two equally charged insulating balls each weigh 0.46 g and hang from a common point with identical threads 50 cm long. The balls repel each other therefore that the separation between their centers is 6.2 cm. What is the magnitude of the charge on ea..

  What is the wavelength in air of such a sound wave

Diagnostic ultrasound of frequency 6.10 MHz is used to examine tumors in soft tissue. What is the wavelength in air of such a sound wave

  What is the linear acceleration of the car

A 2000-kg car accelerates uniformly from rest to 120 km/hr in 10 seconds, then maintains constant speed. What is the linear acceleration of the car

  How long does it take to stop

if a river flows due east at 1.68m/s. a boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 13.40m/s due north relative to the water. if the river is 178m wide, how far downstream is the boat when i..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd