Which is the SI unit?

Which is the SI unit? There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd). What is dimension formula? Dimensional formula (equation) (Definition) : An equation, which gives the relation between fundamental units and […]

How do photographers use strobes?

How do photographers use strobes? You simply punch two numbers into the light meter that you set your camera for (shutter speed and ISO). Then you ‘fire’ your strobe light while holding the light meter in front of your subject. The light meter will display an aperture number. What light is used to reduce shadows? […]

What is the working distance for a 4x objective lens?

What is the working distance for a 4x objective lens? Table 1 – Objective Specifications by Magnification Achromat Correction Magnification Numerical Aperture Working Distance (mm) 4x 0.10 30.00 10x 0.25 6.10 20x 0.40 2.10 What is the working distance of a lens? The working distance defines the free space between the object and the leading […]

Is CL more electronegative than C?

Is CL more electronegative than C? Check out boron: it’s less electronegative than hydrogen [2.0 vs. 2.2]….Carbon is More Electronegative Than You Think. Element Electronegativity (Pauling) F 4.0 [3.98] O 3.4 [3.44] Cl 3.2 [3.16] N 3.0 [3.04] Who is more electronegative N or CL? Nitrogen is more electronegative than Chlorine. FON- Fluorine Oxygen Nitrogen […]

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