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A light year is a measure of how far light can travel in one year. It is a phenomenal distance, and is used to describe how far away stars are from us.
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A scientist wants to know whether a particular cell is round or rectangular. How should the scientist observe the overall shape of the cell?
The scientist should use a light microscope.
Why might a scientist use a light meter?
A scientist might use a light meter to measure the intensity of light in a particular environment. This can help them understand how light levels may affect biological processes, growth patterns, or the behavior of organisms.
Who is the scientist use the light year to measure the speed of light?
It doesn't work that way. The light-year is not used to measure the speed of light. It works the other way round: First, the speed of light is determined through other methods, then the distance called a light-year is calculated based on that measurements.
When scientist refer to a light year?
A light-year is the distance traveled by light in one year. Note that light moves at a speed of about 300,000 km/second.A light-year is defined to have EXACTLY 9,460,730,472,580,800 meters (or approximately 9.5 quadrillion meters).
How do scientist use light?
Scientists use light in various ways for research and experimentation. They use light to study the properties of materials, analyze samples through spectroscopy, and image objects with microscopes. Light is also used in communication technologies such as fiber optics for data transfer.
What is use by scientist to measure the distance light travel in one year?
Scientists don't measure the distance light travels in one year. They calculate it by measuring the speed of light. The speed is 300,000,000 meters/sec. and can be measured in the laboratory with a rotating mirror apparatus. To get the distance traveled by light in one year you multiply the speed (above) by the number of seconds in a year. The answer will come out in meters and is also called one light year.
Why do scientist use light years when making astrononmical oberservations?
Light years is the distance light travels in one year. They do this because other galaxies are too far away to measure in kilometres. The numbers would be too long
When does a scientist use a light microscope?
to look at cells and germs and smaller creatures.
What is a light year and why do we use it?
A light year is the distance that light travels in a year. We use it because it allows us to measure huge distances.
What kind of microscope would a scientist use to determine the shape of a cell?
A scientist would use a light microscope to determine the size and shape of a cell. A light microscope uses visible light to illuminate the object being viewed. Light microscopy is used to observe the overall size and shape of a cell. An electron microscope is used to observe the structure and contents of a cell, including membrane-bound organelles.
How should scientists observe the overall shape of the cell?
The scientist should use a light microscope.
How does a spectroscope extend a scientist's ability to observe light?
It allows a scientist to measure the wavelength of light.
