Question

What is the name of the equatio, n2/v - n1/u = n2 - n1 /r ​

Answer 1

Answer:

This is called equation of refraction of spherical surface.

Explanation:

Equation of lens formula is

1/f = 1/v - 1/u

Equation of lens makers formula is

1/ f =(nl/nm - 1)( 1/R1 - 1/R2)

°R1 = radius of first sphere of lens

°R2 = radius of second sphere of lens

°nl = is the refractive index of lens

° nm= is the refractive index of medium

Answer 2

The name of the equation is Refraction through convex surface.

• Refraction through convex surface:n2/v - n1/u = n2 - n1 /r
• n1 is the ray of light propagating from a rarer medium of refractive index.
• n2 is the ray of light propagating to a densor medium of refractive index.
• The propagating light is incident on the convex side of spherical refracting surface of radius of curvature R.
• Lens Makers formula can be obtained using the Refraction through convex surface equation.
• It is obtained from the refraction formula at the spherical surface.

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