7.25. Digital Screens Tablets and cell phones emit blue light (Figure P7.25) that is known to disrupt sleep patterns when viewed before going to bed. The longest wavelength that corresponds to blue light is 495 nm. What is the frequency of this radiation?

7.25. Digital Screens Tablets and cell phones emit blue light (Figure P7.25) that is known to disrupt sleep patterns when viewed before going to bed. The longest wavelength that corresponds to blue light is 495 nm. What is the frequency of this radiation?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: The electron in an (unbound) hydrogen atom (H(g)) is excited from the ground state to the n=3…

A: The emission spectrum for a given element or a compound refers to the spectrum of frequencies of the…

Q: The electron in an (unbound) hydrogen atom (H(g)) is excited from the ground state to the n=3 state.…

Q: 2. Fill in the blank in the Table. For the given criteria rank the following types of light from the…

Q: What is the energy (in J) of a photon from a microwave oven with a frequency of 6.00 MHz?

Q: If a professional golf player can hit a 45.93-gram golf ball so that it travels 180.0 miles per…

A: de broglie wave equation, λ = h/m v Where, λ = wave length of the particle m = mass of…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 611.0 nm. (c…

A: Answer :- The frequency of electromagnetic radiation that has a wavelength of 611.0 nm = 4.91 ×…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 583.0 nm. (c…

A: Frequency = Speed of light/wavelengthSpeed of light = 3 x 108 m/s

Q: A rifle bullet (mass= 1.50 g) has a velocity of 7.00 x 10^2 mph( miles per hour). what is the…

A: Introduction: Wavelength can be defined as the distance between two successive crests or toughs of a…

Q: Some chemical reactions, such as formation of ozone in Earth's stratosphere, can be initiated by…

A: Answer:The energy associated with one mole of photons will be:

Q: energy

Q: A microwave oven operates at 2.20 GHz. What is the wavelength of the radiation produced by this…

A: The relation between frequecy(in Hz) and wavelength is given by the formula - frequency = speed of…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 552.0 nm. (c…

A: The equation that relates wavelength, frequency and speed of light is c = lamda . v Where, c = speed…

Q: What is the wavelength (in pm) of a proton traveling at a speed of 6.21 km/s?

A: The wavelength (in pm) of a proton travelling at a speed of 6.21 km/s is calculated as,

Q: Calculate the wavelength of the electromagnetic radiation that is used in the household microwave…

A: We will use the formula c=v * lemda where c is the velocity of light = 3* 108 m/s v is frequency of…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 640.0 nm. (c…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 582.0 nm. (c…

A: The equation that relates wavelength, frequency and speed of light isc =λ vWhere, c = speed of light…

Q: What is the energy of a mole of photons that have a wavelength of 647 nm? (h = 6.626 × 10⁻³⁴ J • s…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 603.0 nm. (c…

Q: The microwave from the introduction emits radiation at 2,450 MHz. You want to make a mug cake after…

Q: 8. Which choice best represents the relationship between wavelength and frequency? when frequency…

A: The correct answer is given below

Q: An FM radio station found at 103.1 on the FM dial broadcasts at a frequency of 1.031x 108 s–1 (103.1…

Q: An electromagnetic radiation is fired at a hydrogen atom causing electron excitation from n = 1 to n…

A: When an electron gain energy it is excited to higher energy level. On reaching the higher level it…

Q: A NAVY system operates with a frequency of 76 Hz. What is the wavelength of this radiation in…

A: The energy is related to frequency of radiation as, E = hf where E = energy of radiation in J h =…

Q: A baseball pitcher's fastballs have been clocked at about 99 mph (1 mile = 1609 m). Part 1 of 2…

A: The objective of the question is to find the wavelength exhibited by baseball and hydrogen atoms at…

Q: Calculate the frequency in hertz of

Q: What is the energy of a photon corresponding to radio waves of frequency 1.166 x 10° /s? Energy = J…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 585.0 nm. (c…

A: The relation between frequency and wavelength can be expressed as,

Q: The equipment used for aviation communications emits high-frequency radiowave energy with a…

A: Wavelength, λ = 0.7 km = 700 mE = hc / λh = 6.626x10-34 J sec c = 3x108 m/secE = (6.626x10-34 x 3 x…

Q: An FM radio station found at 103.1 on the FM dial broadcasts at a frequency of 1.031×108 s-1 (103.1…

A: The wavelength and frequency are related as => f X λ = c where f = frequency of wave λ =…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 680.0 nm. (c…

A: The objective of this question is to calculate the frequency of electromagnetic radiation given its…

Q: An FM station broadcasts music at 93.5 MHz (megahertz, or10^6Hz). Find the wavelength (in m, nm, and…

A: The relation between frequency and wavelength can be expressed as,

Q: What is the wavelength of an electromagnetic wave whose frequency is 4.08x10^6Hz?

A: Given, Frequency, ν = 4.08 × 106 Hz = 4.08 × 106 s-1 (1 Hz = 1 s-1) Wavelength, λ = ?

Q: A photon has the energy 2.33 × 10–20 J. What is this photon's frequency?

A: We know that , energy of a photon is related to Plank's constant as,…

Q: Calculate the wavelength of a photon of electromagnetic radiation with a frequency of 91.7 MHz

A: Wavelength and frequency of a photon of an electromagnetic radiation are inversely proportional to…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 530.0 nm. (c…

A: Given : Wavelength of radiation = 530.0 nm Since 1 m = 109 nm => wavelength of radiation in m =…

Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

Q: A photon is emitted, when an electron makes a transition from a higher energy level to a lower…

A: When electrons change the energy level means it goes from one energy level to another energy level ,…

Q: ame: 1. A typical microwave oven produces 2.50 x 10* MHz light. What is the wavelength (in cm) of…

Q: What is the energy of a photon corresponding to radio waves of frequency 1.286 × 10° /s? Energy = J…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 576.0 nm. (c…

A: For an electromagnetic radiation, Frequency, ν = ? Wavelength, λ = 576 nm = 576 × 10-9 m Speed of…

Q: A source of light emits photons with a wavelength of 8.1 x 10-8 meters. What is the frequency

A: Given : The wavelength of the photon = 8.1 x 10-8 m Frequency =? Frequency is defined as the number…

Q: A radio network broadcasts on a wavelength of 96.5 m. What is the energy (in J), of a photon of…

A: Given that the wavelength of a radio network is λ=96.5 m. To calculate the energy (in J), of a…

Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 685.0 nm. (c…

A: The relation between speed of light and frequency is given by, c=λν where c is the speed of light, λ…

Q: Calculate the energy, in joules, associated with the following wavelengths or frequencies: a)…

A: hai

Concept explainers

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.

Question

7.25. Digital Screens Tablets and cell phones emit blue light
(Figure P7.25) that is known to disrupt sleep patterns
when viewed before going to bed. The longest
wavelength that corresponds to blue light is 495 nm.
What is the frequency of this radiation?
FIGURE P7.25

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Relation used

VIEW

Step 2: Calculation of frequency

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The radioactive 60Co isotope is used in nuclear medicine to treat certain types of cancer. Calculate the wavelength and frequency of an emitted gamma particle having the energy of 1.29 × 1011 J/mol.
Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 615.0 nm. (c = 3.00 X 10⁸ m/s)
Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 705.0 nm. (c = 3.00 X 10⁸ m/s)
Ultraviolet radiation and radiation of shorter wavelengths can damage biological molecules because these kinds of radiation carry enough energy to break bonds within the molecules. A typical carbon-carbon bond requires 348 kJ/mol to break. What is the lonngest wavelength of radiation with enough energy to break carbon-carbon bonds?
The photoelectric effect can be used in engineering designs for practical applications. For example, infrared goggles used in night-vision applications have materials that give an electrical signal with exposure to the relatively long wavelength of IR light. If the energy needed for signal generation is 5.1 x 10-20 J, what is the minimum wavelength? What is the frequency of light that can be detected? c= 2.998 x 10® m/s h = 6.626 x 10-34 J s m Submit Answer Retry Entire Group No more group attempts remain
2. A laser pointer used in the classroom emits light at 6550 A, at a power of 4.00 mW. (One watt is the SI unit of power, the measure of energy per unit of time. 1 W = 1 J/s). How many photons are emitted from the pointer in 115 seconds?
What is the wavelength of the matter wave associated with a proton moving at 391 m/s? wavelength of proton matter wave: What is the wavelength of the matter wave associated with a 189 kg astronaut (including her spacesuit) moving at the same speed? wavelength of astronaut matter wave: What is the wavelength of the matter wave associated with Earth moving along its orbit around the Sun? wavelength of Earth matter wave: m m m
Microwaves are a form of electromagnetic radiation with wavelengths between 1 mm and 1 m. What is the frequency of a microwave with a wavelength of 3.52mm?
Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room temperature. These neutrons are most effective in initiating a nuclear chain reaction among 235U isotopes. Calculate the wavelength (in nm) associated with a beam of neutrons moving at 7.00 × 102 m/s (mass of a neutron = 1.675 × 10-27 kg).
WEGT (Hank-FM) operates at a radio frequency of 99.4 MHz 1. What is the wavelength of this radiation (hint: 1MHZ = 106 Hz) 3.02 2. What is the energy of the radio frequency in the problem above? 0.000220 x kJ
The minimum energy required to remove an electron from a certain metal is 3.7 x 10– 19 J. If the metal surface is struck by light having a wavelength of 5.00 x 102 nm, what is the kinetic energy of the electron ejected from the metal?
Radiation in the ultraviolet region of the electromagnetic spectrum is quite energetic. It is this radiation that causes dyes to fade and your skin to develop a sunburn. If you are bombarded with 1.00 mol of photons with a wavelength of 320. nm, what amount of energy, in kilojoules per mole of photons, are you being subjected to? Energy = kJ/mol