Night vision technology uses light of about 940 nm. a) What part of the electromagnetic spectrum...

Night vision technology uses light of about 940 nm.

a) What part of the electromagnetic spectrum is this?

b) Calculate the frequency of this light.

c) Calculate the energy of the light.

Expert Solution

a)

Given light is 940 nm = 940 * 10^-9 m

= 9.4 * 10^-7 m

the vale is in UV region.

b)

Frequency of the light = velocity of light/wave length

= (2.999 * 10^8 m/sec)/(9.4 * 10^-7 m)

= 3.1904 * 10^14 sec^-1

c)

Energy of light E = (planck's constant * velocity of light) / wave length

= (6.624 * 10^-34 J . Sec * 2.99 * 10^8 m/sec)/(9.4 * 10^-7m)

= 2.107 * 10^-19 J

queen_honey_blossom answered 1 year ago

What is the electromagnetic spectrum? What are the wavelength ranges of light? What are photons?

Light is an electromagnetic phenomena vital to astronomical research. What is the FULL electromagnetic spectrum, including...

Light is an electromagnetic phenomena vital to astronomical research. What is the FULL electromagnetic spectrum, including its (short/long wave) energy types? At what wavelength ranges does the visual spectrum extend? In modern astronomy, explain how the electromagnetic spectrum is used. Be sure to include an image of the FULL spectrum. 2 Pages (APA Style)

A spectrum of visible light colors from 400 nm to 700 nm is incident on a...

A spectrum of visible light colors from 400 nm to 700 nm is incident on a diffraction grating that has 500 lines per mm, projecting a pattern on a screen 2.4 m behind the grating. a. Determine the width of the spectrum that corresponds to m = 1 b. How much distance separates the end of the m = 1 spectrum and the start of the m = 2 spectrum?

a. what is meant by the electromagnetic spectrum of the solar radiation? which part is used...

a. what is meant by the electromagnetic spectrum of the solar radiation? which part is used by plants? b.what is alternative to pest control measure to spraying of insecticide? c. is there a difference between high response of plants and the plant adaption to environmental changes in the atmosphere?

Please explain in detail the following topics: light waves and electromagnetic spectrum

The CO microwave spectrum has lines at 0.86 nm, 1.29 nm, and 2.59 nm. a) What...

The CO microwave spectrum has lines at 0.86 nm, 1.29 nm, and 2.59 nm. a) What transitions do these lines correspond to? b) What is the bond lenght of this molecule?

Please explain in detail the following topics: light waves and electromagnetic spectrum photons Chapman cycle

A physics instructor wants to project a spectrum of visible-light colors from 400 nm to 700...

A physics instructor wants to project a spectrum of visible-light colors from 400 nm to 700 nm as part of a classroom demonstration. She shines a beam of white light through a diffraction grating that has 600 lines per mm, projecting a pattern on a screen 2.9 m behind the grating. How wide is the spectrum that corresponds to m = 1? Express your answer with the appropriate units. How much distance separates the end of the m = 1...

What is the Electromagnetic spectrum? What’s the composition of sun ? What are the Einstein special...

What is the Electromagnetic spectrum? What’s the composition of sun ? What are the Einstein special and general theories of relativity? What is the Einstein mass-energy equivalence? Spectral classes of stars ? What is the main - sequence? What’s the age of the universe? What’s the proton-proton chain reaction ? What are the four forces of nature? What are the properties of the planets in the solar system?

A. What are electromagnetic waves? What is the difference between visible light and other electromagnetic waves...

A. What are electromagnetic waves? What is the difference between visible light and other electromagnetic waves that we cannot see? Name four electromagnetic waves that we are not able to see. B- What is the remnant energy of the Big Bang, called Cosmic Microwave Background waves (CMB)? How can we say that the universe is expanding by comparing it to the electromagnetic waves at the time of the Big Bang? C- What is the wavelength of red light and blue...

Question