Spectroscopy

The Frank-Condon Principle states that transitions between electronic states correspond to vertical lines on an energy vs. internuclear distance diagram. The basis of this principle is that electronic transitions happen on a timescale that is significantly smaller than the vibrational period of a given molecule and therefore the distance at which they happen can be assumed to be fixed during the transition. This is significant for spectroscopy because the most intense spectral lines will correspond to transitions to the vibrational state in the upper electronic state that have the most overlap with the ground vibrational state in the lower electronic state. (From Thomas Engel's Quantum Chemistry and Spectroscopy)

The theory that states that all atoms are constantly moving

There is no specific individual credited with discovering lava, as it has been a natural phenomenon present on Earth since the planet's formation. The recognition of lava as molten rock that flows from volcanoes and cools to form igneous rock has been a longstanding knowledge within various cultures. Scientists and geologists have further studied and understand the properties and behavior of lava.

Light is slightly attracted by gravity. If you wish to attract light obtain a very massive object, perhaps a large black hole. Otherwise you are out of luck, light travels in straight lines and can't be gathered with magic, colours, vacuums or anything else.
The colur white reflects almost all of the visible spectrum.

I'm not sure if I understand the question. When using a compound microscope, you always want to start by adjusting the coarse adjustment under low power (like 4x) until you have whatever you are looking at in focus. Then, without moving the adjustment, go to the next power (like 10x or something) and use the coarse adjustment only a little and then use the fine adjustment to get it into focus again. Without touching anything, switch to the next power (say 40x) and DO NOT TOUCH THE COARSE ADJUSTMENT. You will lose your object and have to start all over. Only use the fine adjustment past this point. Again, focus as best as you can. This will depend on the microscope, but some also have a 100x power objective lens. It is best to put a drop of immersion oil onto your sample while you move from 40x to 100x. Then you should only use the fine adjustment a small amount to get your sample into focus. The immersion oil improves the resolution of the image that hits your eye, making it easier to see and not blurry.

we will get black color when all the primary colors(RGB)* combine.

* R-red; G-green; B-blue

the combination of these primary colors in different proportions gives the different shades of colors. when all these colors combine we will get black.

Depends on what you are mixing. :-) If you are mixing colored light, then mixing all colors gets you white. If you are mixing paint, it depends on the proportions, but if all are equal, you get black.

The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each type of radiation has different properties and interacts with matter in different ways.

look it up somewhere else

OR just say Russia

Colour is the human perception of certain frequencies of light. Without light, there is no colour to be perceived. A dark room may still have light in it (and in fact it does in the form of infrared light), but the intensity of that light is small, and the human eye may not be able to see it.

In short, no light = no colour.

colour blue ------> red frequency drops, wavelength increases, because speed remains constant and speed=frequency*wavelength

Red fuel containers are for gasoline.

Blue are usually for diesel fuel.

Some water containers are also made blue and look sort of like gas cans, so check to make sure it is actually meant for fuel before filling it. Otherwise the plastic might turn out to be not fuel-resistant and melt.

The dipole moment direction for methanol is from the oxygen atom towards the hydrogen atom in the molecule. This is because oxygen is more electronegative than hydrogen, causing an unequal sharing of electrons and creating a partial negative charge on oxygen and a partial positive charge on hydrogen, resulting in a dipole moment.

Magenta is a distinct color that is not a shade of red. It is a combination of red and blue light wavelengths, resulting in a purplish-pink hue.

The electromagnetic spectrum consists of various types of electromagnetic waves, such as radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. These waves differ in their wavelengths and frequencies. Each type of wave interacts with matter in different ways, allowing us to use them for various applications such as communication, imaging, and heating.

I have wondered the same thing. I believe after searching the Internet, this is part of Project Blue light sponsored by COPS. This is to honor fallen police officers/law enforcement who lost their lives in the line of duty. Goggle Project Blue Light for more info.

a football player can know at what angle he needs to kick the ball to score a goal, or to make it reach a particular point. a baketball player can know at what angle he can shoot and what velocity he needs to give the basketball, during a free throw. for sharpshooters, this is very important, as they get to know the angle,etc.

1,3-dioxolane is expected to show characteristic peaks in the IR spectra at around 1100-1200 cm^-1 for the C-O-C stretching vibration and around 950-1000 cm^-1 for the C-O stretching vibration. Additionally, peaks around 2900-3000 cm^-1 can be observed for C-H stretching vibrations.

okay, it took me really long to find the answer to this question but i finally got it from my teacher!!!! Concentrated mean a liquid or other substance with a high viscosity of one thing. By the way this is the SCIENCE term for "Concentrated.

To find the least count of an instrument or measuring device, divide the smallest measurement unit by the total number of divisions on the scale. The least count represents the smallest increment that can be measured or displayed by the instrument.

Density is dependent on two things - the volume of the object under consideration, and it's mass. For a given material, in order for the volume (the size) to change, so must the mass by a proportional amount. Therefore, for a specific material, changing the size of the sample does not affect the density in any way.

Even in a dark room, there may still be small amounts of light present that can activate the cells in our eyes responsible for detecting color. This residual light can cause us to perceive colors, although they may not be as vibrant as in a well-lit environment.

White is not a colour. It is sensed only by human eye. Actually white is a composite of many colours. Such a composite white light could be spilit up by using a triangular prism. This splitting of composite white light into its constituent colours is called dispersion.

Let's start with a basic concept. The color of light is determined by its frequency. And higher frequency light has more energy than lower frequency light. As regards electrons shifting energy levels, when an electron wants to move to a lower energy level, it must radiate energy to do this. And the energy it radiates will be exactly the "right amount" for that electron to go to that lower energy leve. The greater the difference in the starting and finishing energy levels, the more energy the electron will have to radiate away. And this will determine what the energy of the photon will have to be. It will determine its frequency, and, therefore, its color.