0
What else can I help you with?
How do you calculate microscope power?
the objective lens has the power of that lens inscribed on it
What happens when you increase the diameter of a telescope?
Specifically if you increase the diameter of the main lens, or of the main mirror (depending on the type of the telescope), you'll be able to observe dimmer objects (stars, planets, etc.). Also, the telescope's resolving power (angular resolution) improves with a bigger mirror/lens. For example, with a bigger mirror/lens you'll be able to distinguish two stars that are closer together as separate objects.
What is 20 x 70 mm telescope?
20 refers to the amplification, 70 mm to the diameter of the main lens or mirror. Note: This diameter is by far the most important piece of information.
What is the power of the objective lens multiplied by the power of the eyepiece?
The eyepiece is usually 10x, so multiply the objective by 10 to get true magnification
What does 12.0 diopter mean?
A diopter is a unit of measurement used to describe the optical power of a lens. A lens with a power of 12.0 diopters means it can converge or diverge light rays to focus at a distance of 1/12 meters, or approximately 8.33 centimeters. This indicates a strong lens, typically used for correcting significant vision impairments such as myopia (nearsightedness) or hyperopia (farsightedness).
Why does a lens with with 2 cm diameter have 4 times the light gathering power of a 1 cm lens?
Because the 2cm lens has 4 times the area of a 1cm lens. (area = Pi*r2)
What does 10-90x60 on binoculars?
The numbers on binoculars typically represent the magnification power (10x) and the diameter of the objective lens in millimeters (60mm). This means the binoculars offer 10 times magnification with a 60mm objective lens diameter.
How do you calculate field diameter?
Field diameter is calculated by measuring the distance across the field of view of a microscope, then dividing that measurement by the magnification of the objective lens being used. This gives you the field diameter in micrometers.
How would you estimate the size of object viewed under high power objective lens 40 times if you were given the size of the field diameter when using low power objective lens 4 times?
You can estimate the size of the object by comparing the field diameters observed under the low power objective lens (4x) and high power objective lens (40x). Calculate the ratio of the field diameters (40x/4x = 10), and use this ratio to estimate the size of the object viewed under the high power objective lens. Simply multiply the size of the object viewed under the low power objective lens by the ratio (field diameter at 4x) to get an estimation.
When looking for a scope what does the 6 mean in 6-24x40mm?
This is a variable power scope- from 6 power to 24 power. The front lens (objective lens) is 40mm in diameter.
What is the meaning of 4x40 in a rifle scope?
It magnifies 4 times, and the objective (front lens) is 40 mm in diameter. A 3x9-40 would be a 3 to 9 power variable magnification scope, with a 40mm objective lens.
How do you calculate the field diameter of the medium power lens?
To calculate the field diameter of a medium power lens, you need to first determine the field number of the lens. The field number is typically provided by the manufacturer and represents the diameter of the field of view in millimeters. To calculate the field diameter, you divide the field number by the magnification of the lens. Field diameter = Field number / Magnification.
Are light-gathering power and resolving power determined by the primary mirror of a telescope?
Yes, both have to do with the diameter of the objective mirror/lens
How many times will a microscope lens with a power of 40X magnify an object?
A microscope lens with a power of 40X will magnify an object 40 times its actual size.
How many times would a cell be magnified if you viewed it through the low power lens?
Typically, the low power lens magnifies a specimen by 10x. So, if you view a cell through the low power lens, the cell would be magnified 10 times its actual size.
How many times will a microscope lens with a power of 20X magnify an object?
A microscope lens with a power of 20X will magnify an object 20 times its actual size.
What is the magnification power of a 300mm lens?
The magnification power of a 300mm lens is determined by the focal length of the lens. A 300mm lens typically has a magnification power of 3x, meaning it can make objects appear three times larger than they actually are.
