Yes, that is correct. A greater main mirror, or main lens, will gather more light.
Yes, that is correct. A greater main mirror, or main lens, will gather more light.
Yes, that is correct. A greater main mirror, or main lens, will gather more light.
Yes, that is correct. A greater main mirror, or main lens, will gather more light.
Yes, that is correct. A greater main mirror, or main lens, will gather more light.
light gathering power and resolving power
Just like any antenna used to collect electromagnetic energy at any other frequency, the 'gain' is proportional to the antenna's area. Since the area varies as the square of the collector's diameter, doubling the diameter increases the gain by a factor of 22 = 4. The corresponding increase in gain is 6 dB.
The primary mirrors of each of the two telescopes are 10 meters (33 ft) in diameter. A human eye has a pupil less than 8mm in diameter. The area of a Keck mirror is about 1,6 million times larger than that of the human pupil. (The sensors used are more sensitive too able to detect single photons).
Light telescopes with a diameter of 30-50 meters are currently planned; probably larger ones will be built in the future. I believe the largest radio telescope has a diameter of about 300 meters. On the other hand, it is possible to connect (through a technique called interferometry) telescopes that are thousands of kilometers apart, so they have the resolving power (but not the light-gathering capacity) of a single telescope that size.
Its apparent diameter is about half a degree, or 30 minutes. It actually varies a bit, depending on whether the Earth is in periapsis or in apoapsis.
Human hair varies in size greatly. A child's head hair can be as fine as 0.05mm. An adult's head hair can be as course as 0.25mm. Adult eye- brow hair can be as thick as 0.3mm. Hair is circular in shape, not flat like grass. Things which are circular or round in shape, do not have 'thickness', they have 'diameter'.The sizes above express the Diameter of Hair. In the Imperial system of measure, human hair varies between 0.002 inch & 0.010 inch Diameter.
About 1.92 times as much. (rounded) The so-called "light gathering power" varies in proportion to the area of the objective lens or mirror, which in turn varies as the square of its diameter. (36 inches/26 inches)2 = 1.9172 = about 2.83 dB
varies
It varies. There is no set diameter of a circle.
The diameter of meteorites varies greatly, from the size of a grain of sand to the size of Mars (speculated).
The brake horsepower varies as a cube of the impeller diameter.
Just like any antenna used to collect electromagnetic energy at any other frequency, the 'gain' is proportional to the antenna's area. Since the area varies as the square of the collector's diameter, doubling the diameter increases the gain by a factor of 22 = 4. The corresponding increase in gain is 6 dB.
The size varies but average is about 1-1.5 feet
8 inches exactly, it never varies. Unless in Sweden where diameter is 7.5 inches.
The cost of a car mirror varies depending on the type of mirror: mechanical or electric. Car mirrors may range in prices from sixty to one hundred dollars.
The Earth is not a perfect sphere. The diameter varies depending on where you measure it.
The nature of the image is not constant. It varies with the distance between the object and the mirror.
pi