What is light? How fast does it travel in a vacuum?

Q: What is true about the nature of light? Select all that apply. OLight can be reflected in different…

A: Light is composed of photons which are small packets of energy.

Q: Compare the dual nature of light

A: LIGHT HAVE A DUAL NATURE.

Q: Why bones glow in dark?

A: The process of conversion of one substance usually termed as reactants into new substance that is…

Q: How are the wavelength and frequency of light related?

A: Shorter the wavelength, higher will be the frequency and longer the wavelength, lower will be the…

Q: What are emission spectra? How do line spectra differ from continuous spectra?

A: Emission spectra:  The spectrum of radiation formed due to transition of electron from high energy…

Q: What are some examples of fluorescent light and incandescent light?

A: Fluorescent lights are gas filled tubes (tube lights). The gas gets excited by electric pulses and…

Q: When an intense beam of green light is directed onto a copper surface, no electrons are ejected.…

A: The frequency that is required by the radiation to eject energy from the metal surface is called as…

Q: Night vision goggles like those used by the US military operate in one of the regions of the…

A: The night vision goggles used by US military are designed to help the soldiers to see during the…

Q: How does the amount of impurities in water affect the ability of light to penetrate it

A:

Q: Why do atoms, when excited withenergy, emit light only at particular wavelengths?

A: When atoms gain energy , there is always excitation of energy. They get excited and move to higher…

Q: What determines the color of light? Describe the difference between red light and blue light.

A: Given color of lights,      Red light and blue light.

Q: Hypothesize and diagnose interactions of light and electrons

A: Light is also known as electromagnetic radiation and it travels in a straight line. Light can do a…

Q: Which graph in Figure 4 shows the relationship between the energy of a photon and its wavelength? *…

A: To find: Relationship between energy of photon and wavelength.

Q: A photon has a wavelength of 359 nm. Calculate the energy of the photon in joules. Enter your answer…

A: The relation to determine the energy of a photon for electromagnetic radiation is given by,…

Q: How does light emitted from a neon sign differ from sunlight?

A: When an atoms absorbs energy and release it, then it gives a spectrum of different colors. This type…

Q: One model of light depicts it as consisting of energyparticles known as ___________.

A: Light- a form of electromagnetic radiation that can be observed by the human eye and has a…

Q: Light is emitted from a flame by elements when electrons move from the state to the state.

A:

Q: Which color of visible light has the longest wavelength?  A. Red  B. Yellow  C. Blue D. Violet

A: Relative wavelength and color: Violet < Indigo < Blue < Green < Yellow < Orange <…

Q: Why do we not notice the wavelengths of moving objects such as automobiles?

A: Given information,   We not notice the wavelengths of moving objects such as automobiles

Q: Barium chloride (BaCl2) emits a green color when flame-tested. What can be said about the wavelength…

A:

Q: Question 4 Which among the statement below is true about the observed color of light? O It is the…

A: White light is made up of seven colors which is called VIBGYOR

Q: What are three deficiencies of the wave model of light related to light’s interaction with matter?

A: According to a Wave model for light, the light is made up of wave that vibrates up and down to the…

Q: what conclusion Did Einstein draw about light after observing the photoelectric effect

A: In 1905, Albert Einstein gave a fresh explanation on photoelectric effect. With regard of KE of…

Q: A photon has a wavelength of 745 nm. Calculate the energy of the photon in joules. Enter your answer…

A: The relation to determining the energy of a photon for electromagnetic radiation is given by,…

Q: Consider three different light waves in the visible spectrum: A, B, and C. The energy of Wave A is…

A: The energy of the radiation is quantized. The smallest unit of energy of the radiation is known as…

Q: Differentiate between the wavelength of visible light and the wavelengthof a moving soccer ball.

A: It was the scientist Louis de Broglie who introduced the concept of dual character of matter. Light…

Q: A tanning booth uses ultraviolet light at a wavelength of 1000. Á. Visible light from the sun…

A: We will use Planks quantum theory to calculate this numerical.

Q: what are the factors affecting scattering of light?

A: The scattering of light is a physical process in which some form of light are forces to deviate from…

Q: During fireworks, visible light is emitted when:

A: When the fireworks are lit, the atoms/molecules in the gunpowder are heated up.  Due to the heating…

Q: Describe one result of a molecule absorbing visible light.

A: In any substance, when atoms or molecules absorb a certain wavelength of light, they reflect the…

Q: Why can algae perceive light across the visible spectrum?

A: Visible spectrum is the part of the electromagnetic spectrum which is visible to the human eye.

Q: Rank blue light, red light and ultraviolet light in order of energy.

A: According to the equation,

Q: Which statement concerning visible light is correct? The product of wavelength and frequency is a…

A: Solution:      Visible light is one of the forms of electromagnetic radiation. They belongs to the…

Q: How do the wavelengths yellow compare to the wavelengths of orange?

A: 1. According to de-broglie principal, we can say that electron can behave as a particle and a wave,…

Q: Pick two wavelengths of light (use 3 sig figs and units of nm). Pick one from the X-ray region and…

A: The wavelength range of X-ray region is 0.01 nm - 10 nm The wavelength range of microwave region is…

Q: How can the color of light be determined? Describe the difference between red light and blue light?

A: Light is wave known as electromagnetic radiation. Electromagnetic radiation could differ in terms…

Q: If you have a 100 Watt lamp, about how many photons are emitted per second, assuming the majority of…

A:

Q: Energy of photon a) increases with decrease in wavelength b) increases with increase in wavelength…

A: Energy of photon E = nhν ν = c/λ therefore E= nhc/λ

Q: Define the following terms: Refraction: Reflection:

A: These are the topic of  light which you study in Physics   When waves bounce off a barrier, they…

Q: The materials called phosphors that coat the inside of a fluorescent lamp convert ultraviolet…

A:

Q: Describe what is the photoelectric effect?

A: We know that light radiations move in the forms of photons(discrete packets of light) and when these…

Q: black colored algae is very dark because it absorbs what range of visible light? dark blue all…

A: Colours are appeared when a certain colour is reflected and rest of the colours are absorbed.

Q: What are photo electrons?

A:

Q: When light hits an object, the object absorbs some of the light and reflects the rest of it. The…

A: The color perceived by the human eye is based on the wavelength of the light reflected by an object.

Q: Explain how the photoelectric effect helps us understand the nature of light

A: The photoelectric effect is the phenomenon of ejection of electrons from the surface of certain…

Q: In the photoelectric effect, if the intensity of light shone on a metal increases, what will happen?

A: when light incident on metal surface in specific condition,  electrons are emitted from metal…

Q: The infrared part of the solar light on the surface of earth as wavelengths between look at the…

A: Given wavelengths,

Q: he hydrogen atom produce light at all wavelengths

A: Concept: The branch of chemistry that deals with the structure, properties and the reaction of the…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.