Suppose I am viewing light through a camera lens (i. e. a circular aperture). If I want a wider field of view I should the diameter of the lens.

Increase

Explanation:

Because For a given focal length, a lens with a larger front element will generally be faster. That is, it'll have a larger maximum aperture, allowing a shorter exposure time, But a larger aperture requires larger elements to maintain the same angle of view

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.