What will happen to converging power and focal length,if we take thick convex lens?
Answers
If the thickness of the lens is more, then the power of the lens always increases.
We know, P = 1/f
We can conclude that Power (P) is inversely proportional to focal length (f).
So, when Power (P) has a greater value, the focal length will decrease.
Hence, if we take a thick convex lens,
Converging Power will increase.
Focal length will decrease.
The reciprocal of the focal length of a thin lens is equal to the refractive index multiplied by the sum of the radius of curvature of each lens surface. Yes,if the focal length is less, then the the thickness will be more. As the focal length increases,the thickness decreases.If the image and object are on the same side of the lens, the image distance is negative and the image is virtual. For converging mirrors, the focal length is positive. Similarly, a converging lens always has a positive f, and a diverging lens has a negative f.