Question

write an activity to find on which factors does the focal length of lens depend?​

Answer 1

Answer:

focus

centre of curvature

pole

mirror

ray of light

angle of incidence

angle of reflection

angle or refraction

Answer 2

Answer:

The focal length of a lens is depended on the surrounding medium.

The reason behind this phenomenon is that the angle of refraction of a lens is depended on the indices of refraction of the medium of lens and the incoming medium and the difference in their indices.

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