The objective lens (right above the slide stage) is 4x. The eyepiece (what you look into) is 10x. 4 times 10 = 40. Whatever the objective lens power is, you have to multiply it by the eyepiece power (usually 10x) to get the overall magnification.
A microscope (literally ~ 'see small') is a device to aid our natural eyesight. A low power microscope (<40 times) is very useful in inspection of samples, and in dissecting small structures. Such as parts of a flower. Stereo microscopes are good in this region. From here you go up to medium power 'scopes, up to a few hundred times. You'll now be looking at the grains of sandstone and similar small items. A binocular microscope will be useful, but you'll no longer have stereo presentation. Much more than a few thousand becomes difficult for a light microscope, for your subjects themselves approach the wavelength of light in size. Beyond this, electron microscopes rule, and they may not actually look at the specimen directly. They fire a beam of electrons at the specimen, and display the results on a video screen. But you can have much more fun here, for if the electrons are sufficiently energetic, they can cause secondary emission from the sample, and analysing these emissions can identify the elements in the sample. You'll now be looking at part of an individual grain of a sandstone. And with an EM microscope it is simple to copy the picture from the video screen.
40= 104 f
There are 0.9144 metres in one yard. Therefore, 40 yards is equal to 40 x 0.9144 = 36.576 metres.40 yards = 36.576 metres36.57600 metres
Because 40 degrees Celsius is equal to a temperature of 104 degrees Fahrenheit.
40 degrees Celsius is equal to a temperature of 104 degrees Fahrenheit.
The power of a light microscope can be determined by multiplying the magnification power of the eyepiece by the magnification power of the current lens. Ex. (10x) by (40x) results in in a 400x magnification.
40^10 is equal to 10,485,760,000,000,000.
A microscope lens with a power of 40X will magnify an object 40 times its actual size.
Example: 4 = Low Power 10 = Med. Power 40 = High Power 100 = Eyepiece Low Power x Eyepiece = 40x Med. Power x Eyepiece = 100x High Power x Eyepiece = 400x
20
405 = 102,400,000
10 x * 40x = 400x
it would be 15 times 40 which is 600 times magnification
5 to the power of 40 is equal to 9,094,947,017,729,280,000. This can be calculated by multiplying 5 by itself 40 times. In mathematical notation, it is written as 5^40. This number is extremely large and is often expressed in scientific notation for easier understanding.
Low power objective magnifies the object by 10 times, whereas high power objective magnifies 40 times. When we change from low power to high power, the object appears larger, exactly 4 times larger than low power. Low power objective covers a larger area, whereas high power covers a smaller area.
The expression 2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2 can be simplified by multiplying all the 2s together. This results in 2 raised to the power of 20, which is equal to 1,048,576.
400 x 10^3 is equal to 400,000.