How Do Glow Sticks Glow?

Q: What is the frequency and the energy for the typical wavelength for the X Ray region of the…

A: Given, wavelength of X-ray  =an Angstrom                                             = 1 A°we are…

Q: What are the 15 parts of a microscope? Differentiate the Optical Parts and Mechanical Parts.

A: Microscope is the instrument used to view very small objects or substance.

Q: Why does a neon sign give off red light?

A: Neon is a noble gas element. It has atomic number of 10 and atomic mass of 20g/mol. It's chemical…

Q: Wavelength (nm) a. Which part of the visible light spectrum is most useful (most absorbed) by…

A: Complementary colours are pairs of colours that contrast with each other more than any other colour,…

Q: Describe the phenomena that can be explained only by the particle model oflight.

A: Light has dual nature ( particle nature and wave nature ) sometimes it behaves like a particle and…

Q: me red light has a wavelength - significant figures.

A: E = (2.2mol) hc / ( wavelength )  [ NOTE : 1mol = 6.022 • 10^23 and 1nm = 10^-9 m  E = ( 2.2 • 6.022…

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

A:

Q: What are orbits?

A: Orbits have to be defined below.

Q: Describe the difference between red and violet light

A: Light or visible light is electric radiation within the part of the electromagnetic spectrum that…

Q: I need help explaining why led bulbs are considered to be superior to other types of bulbs.

A: LED bulbs are generally known as light emitting diode bulb .

Q: 6. How does the solution concentration affect how much light is absorbed and transmitted through the…

A: 6. Beer-Lambert's law,         A = ε c lA-absorbance, ε-molar absorptivity c-concentration and…

Q: Mechanical waves move best through solids.

A:

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

A:

Q: Which wavelength of light is most likely to cause a sunburn? Explain. A.) 700 nm  B.) 400 nm  C.)…

A: Wavelength is the distance between two consecutive crests of a wave.Relation between Energy and…

Q: How are electrons distributed in different orbits(shells)?

A: The arrangement of electrons filled in the atomic orbitals is defined as electronic configuration.…

Q: We don’t see a car moving as a wave on the road why?

A: According to de Broglie relation,

Q: rotate the electrons or charges

A: valency of O is 2.  when is bonded with single bond then it has formal charge -1 and when it is…

Q: The deflection of light particles passing through a particular medium is called refractive index.…

A:

Q: how does the amount of impurities in water affect the ability of light to penetrate it? Second…

A: Results & Analysis and Conclusion:

Q: Explain what would happen when light undergoes refraction

A: Explained as follows

Q: An excited electron cannot do which of the following? A. Transfer energy to a neighboring photon B.…

A: From the given data we need to find the fate of the excited electron.

Q: What do you think is the reason why fruits/vegetables change color? Is it beneficial or bad for…

A: The reason for color change of fruits and vegetables,the steps for prevention it given below.

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: QUESTION 9 What poperty of light is affected that explains the refraction of light through different…

A: Refraction of light in the presence of  different medium.

Q: 1. What factors are included in the Beer's law expression for determining how much light passes…

A:

Q: Explain the various phenomenon happen when an electron beam impinges on the specimen.

A: When an electron beam impinges on the specimen the various phenomenon happens are :  ==> 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: The absorbance of various wavelengths of light by a solution were measured. How does absorbance…

A: To define: Relationship between the intensity of light transmitted and absorbance of the light.

Q: e frequency of a

A:

Q: Describe what happens when atoms or molecules absorb light?

A: An atom can absorb or emit one photon, when an electron makes a transition from one stationary…

Q: What happens to white light when it passes through a prism

A: The optical element which has transparent flat polished surfaces is called prism, in which the…

Q: What causes light refractics, what does the index of refraction express?

A: When the light travels at a particular angle and enters a medium with a different density, then the…

Q: Predict the number of signals

A: It explains the nature of protons in unknown compound  Radio waves are used in NMR spectroscopy…

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: A detector measures the amount of light generated by the flame and not absorbed by iron. True False

A:

Q: The distance between points A and B is equal to one focal length wavelength Figure 2

A: We have to write the distance between A and B

Q: At a quantum level, the atoms of both glass and ground glass should be identical. If the absorption…

A:

Q: 36. Molten iron glows with a reddish-orange color. How is heat energy converted into light energy in…

A: The concept of conversion of Heat energy to Light energy is radiation emissions. As we keep heating…

Q: Blue light travels at a faster speed than red light true or false

A: Since we know that  E = hc/λ  Where ,  E = energy of Photons  h = Planck's constant  c = speed of…

Q: Why is visible light (by itself) not used to destroy cancerous tumors?

A: A series of electromagnetic radiation with different frequencies and wavelength is known as…

Q: Why does sky appear blue to us?

A: As our atmosphere has a lot of small particles of dust, droplets of water vapour and the sun light…

Q: On the electromagnetic spectrum, visible light is immediately between what two other wavelengths?

A:

Q: What type of light is produced as a result of friction between certain crystals?

A: Triboluminescence is a flash of light produced when a material is subjected to friction, impact or…

Q: how uv-vis work?

A:

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.