Question 23 Imagine that you live an an alternate universe where the Speed of light-5.25 x 108 m/s. All other physical and chemical principles are unchanged. In this universe, what is the frequency of electromagnetic radiation that has a wavelength of 940 nm? 0938x105 Hz OB30X1014 H 5.59 x 1014 Hz 0.6MX10 HỆ 07001010 HE

Question 23 Imagine that you live an an alternate universe where the Speed of light-5.25 x 108 m/s. All other physical and chemical principles are unchanged. In this universe, what is the frequency of electromagnetic radiation that has a wavelength of 940 nm? 0938x105 Hz OB30X1014 H 5.59 x 1014 Hz 0.6MX10 HỆ 07001010 HE

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter28: Special Relativity

Section: Chapter Questions

Problem 24PE: If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light...

See similar textbooks

Similar questions

Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a vehicle and detecting a Doppler shift in the reflected wave. Suppose police radar transmit at a frequency of 24.0 GHz and receives a wave reflected from a car moving toward the radar at 65.0 mph. Find the frequency shift f = f0 fs between the observed (received) and source (transmitted) frequencies.
Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a vehicle and detecting a Doppler shift in the reflected wave. Suppose police radar transmit at a frequency of 24.0 GHz and receives a wave reflected from a car moving toward the radar at 65.0 mph. Find the frequency shift f = f0 fs between the observed (received) and source (transmitted) frequencies.
The distance to the North Star, Polaris, is approximately 6.44 1018 m. (a) If Polaris were to burn out today, how many years from now would we see it disappear? (b) What time interval is required for sunlight to reach the Earth? (c) What time interval is required for a microwave signal to travel from the Earth to the Moon and back?
Integrated Concepts Electromagnetic radiation from a 5.00-mw laser is concentrated on a 1.00m2 area. (a) What is the intensity in W/m2? (b) Suppose a 2.00nC static charge is in the beam. What is me maximum electric force it experience? (c) If the static charge moves at 400 m/s, what maximum magnetic force can it feel?
Unreasonable Results A researcher measures the wavelength of a 1.20-GHz electromagnetic wave to be 0.500 m. (a) Calculate the speed at which this wave propagates. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?
If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light characteristic of hydrogen (the most common element in the universe). (a) What wavelength would we observe on the Earth? (b) What type of electromagnetic radiation is this? (c) Why is the speed of the Earth in its orbit negligible here?
An electromagnetic wave of frequency 4.4 x 1012 Hz propagates with speed 0.89c. Calculate the wavelength, in mm. Use two significant figures in your answer.
A truck driver is broadcasting at a frequency of 24.865 MHz with a CB (citizen’s band) radio. Determine the wavelength of the electromagnetic wave being used. Use 2.9979 × 108 m/s as the speed of light, and give your answer to five significant figures.
Question 3Radio waves, a type of electromagnetic wave, are emitted by an antenna, picked up by a receiver, and translated into sound waves. Electrons in the antenna oscillate creating the radio waves, and these oscillations are decoded by the receiver to create sound waves in the range of human hearing. This concept is similar to having two aluminum cans connected by a string and sound is transmitted as vibrations in the string.Which statement describes a similarity shared between electromagnetic and mechanical waves?A Electromagnetic and mechanical waves are both transverse waves. B Electromagnetic and mechanical waves are both caused by vibrations. C Electromagnetic and mechanical waves both need a medium to travel through. D Electromagnetic and mechanical waves both travel fastest through high density mediums such as solids.
6: The frequency of an electromagnetic wave traveling in vacuum is f = 7.9 × 106 Hz. f = 7.9 × 106 Hz (a) Express the wavelength of the wave, λ, in terms of f and the speed of light, c. (b) Calculate the wavelength, λ, in meters.
Electromagnetic waves, which include light, consist of vibrations of electric and magnetic fields, and they all travel at the speed of light, 3.00×108 m/s Part A: Sunburn (and skin cancer) is caused by ultraviolet light waves having a frequency of around 1.02×10^16 Hz. What is their wavelength? Part B: It has been suggested that extraterrestrial civilizations (if they exist) might try to communicate by using electromagnetic waves having the same frequency as that given off by the spin flip of the electron in hydrogen, which is 1.43 GHz. To what wavelength should we tune our telescopes in order to search for such signals? Part C: Microwave ovens cook food with electromagnetic waves of frequency around 2.45 GHz. What wavelength do these waves have?
Question 01: For the following statement identify if it's True or False. If False, please explain in one or two sentences why the statement is False. a) The addition of the displacement current by Maxwell corrected for the fact that in the space between the two plates of a capacitor there is a measurable magnetic field generated. (This is actually not the major reason this term was added, though it was a smaller reason. Check out the real reason this term was added by Maxwell.