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What is the difference between single crystal and polycrystalline material?
A single crystal solid is a material in which the crystal lattice of the entire sample is continuous and unbroken to the edges of the sample, with no grain boundaries. While Polycrystalline materials are solids that are composed of many crystallites of different size and orientation.
Why is speed a scalar quantity but a velocity a vector quantity?
Speed is only a magnitude (single value) while velocity is both magnitude and direction. Direction is a vector.
The rate of changing quantity is the amount it changes per single increment of time?
I dont know
What is the frequency of the waves?
Waves are constituted by periodic oscillations of some physical quantity (like pressure in matter of electric field, in this cases we talk about sound and electromagnetic waves). A superposition of different oscillations is also a wave. Let us consider a single oscillation. Since it is periodic, if we focus on the quantity on a single point, in time it has a periodic change. The wave frequency is by definition the inverse of the period of this change, that is the inverse of the time elapsed between two consecutive instant where the considered quantity has the same values in the same point. A wave constituted by a single oscillation is called monochromatic, from the fact that light constituted by a single oscillation is of a well defined primary color. If the wave is a superposition of different oscillation it is said to have different frequency components, one for each individual oscillation. Such a wave, on the example of light, is called polychromatic.
What is refractive index of diamond?
The (very high) refractive index of diamond is 2.4 at room temperature.(From Wikipedia: "Refractive index also describes the quantity that light is bent as it passes through a single substance."
What is the term that expresses the amount of a single quantity compared to an entire sample?
Unit.
What sample mean?
A single part, a portion or specimen representing the characteristics and qualities of the whole. Or a single example of a quantity of mass produced products
What does sample mean?
A single part, a portion or specimen representing the characteristics and qualities of the whole. Or a single example of a quantity of mass produced products
Does a colony count really give a total count of microorganisms per unit sample of the original material?
Yes, each colony that forms on the plate was the result of a single microorganism. If you can know the quantity of the unit sample, you can know the number of microorganisms that were in that sample by counting the colonies.
What is the difference between single crystal and polycrystalline material?
A single crystal solid is a material in which the crystal lattice of the entire sample is continuous and unbroken to the edges of the sample, with no grain boundaries. While Polycrystalline materials are solids that are composed of many crystallites of different size and orientation.
What is 1 quantity?
A single item.
What is the shape of the distribution of the mean of a sample?
The mean of a sample is a single value and so its distribution is a single value with probability 1.
What is the sample standard deviation of 27.5?
A single observation cannot have a sample standard deviation.
Do labs keep urine after they test it?
There are single-sample tests and split-sample tests. If you've got a split-sample test, the second half of the sample goes into the freezer for six months regardless. For single-sample and the other part of a split-sample test, they retain the sample if it tests positive, but if it tests negative they normally dump it.
What is the advantage of two stage amplifier compared to single stage?
In a two stage amplifier the gain (ratio of the output to the input quantity) of the first stage is amplified again in the second stage so the gain of a two stage amp is the product of the gain of two individual stages which is sufficient enough to drive the output device as compared to a single stage amplifier.
Quantity that can have more than a single value?
It is variable
A quantity that can have more than a single value?
It is variable
