Fine Beautiful Derive Lens Maker's Formula For A Convex Lens
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Derive lens maker's formula for a convex lens. Assumptions made in the derivation. Applying the equation above written for surface 1. Write the basic assumptions used in the derivation of lens makers formula and hence derive this expression.
The following assumptions are taken for the derivation of lens maker formula. Let AB represent an object placed at right angles to the principal axis at a distance greater than the focal length f of the convex lens. A convex mirror is placed coaxially on the other side of the lens at a distance of.
Let us consider the thin lens shown in the image above with 2 refracting surfaces having the radii of curvatures R1 and R2 respectively. I Aperture of lens should be small ii Lenses should be thin iiiObject should be point sized and placed on principal axis. Consider the situation shown in figure.
Figure a shows the geometry of image formation by a double convex lens. Let R 1 R 2 are the of curvature of the surfaces ABC ADC of the respectively. A thin convex lens of focal length 10 cm and a thin concave lens of focal length 262 cm are in contact.
Let F be the principle focus and f be the focal length. Hence drive the expression of the lens makers formula. Derive lens makers formula for a thin convex lens.
Using surfaces of suitable radii of curvature. Draw the following diagram in which a ray of light is incident on a concave convex mirror on your answer sheet. A Derive lens makers formula for a biconvex lens.