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Will the focal length of a lens change when put in water?

Updated: 8/20/2019
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Wiki User

11y ago

Best Answer

A careful reading of the question raises the uncomfortable suspicion that it might be

very difficult to put the focal length in water.

However, it's quite possible to put the lens itself in water. When that's done, it's quite

likely that the lens's focal length has changed. The refractive indexes of both materials ...

the substance of which the lens is made and the medium around it ... are both involved in

determining its focal length.

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11y ago
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Q: Will the focal length of a lens change when put in water?
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Related questions

How focal length of a lens change when apparatus immersed in water?

Yes , because when lens is deeped in water its R.I changes & hence focal length is increased


How does change in the thickness of lens change the focal length of lens?

Not at all. The focal length is determined by the curvature of the surfaces.


Does the focal length of a spherical mirror or lens change when placed under water?

i do not think so because a mirror an a lens is two same things except that mirrors can reflect the water and the lens may refract or bend the water so that can change the focal length between the mirror and the lens


Will the focal length of concave lens change in water?

no, because this happens only in the cases of lenses


How do you find the new focal length when the lence is put in to the water?

to find the new focal length when the lens is put into water it becomes the 4 times the focal length in air.


Whats the focal length of a lens?

The focal length of a lens is the distance from the principal foci to the center of the lens.


A concave mirror and a convex lens are held in waterwhat changes if any do you expect in their focal length?

Excellent question. The answer is actually yes! According to the lens makers formula, it will change based on the refractive index of the material of the concave mirror wrt the medium. Google Lens makers formula for better understanding! NO! the focal length of the mirror will not change if it would be a lens then the focal length would change. The lens maker's formula is for Lenses only!


What happens to focal length when convex lens is cut horizontally?

no change


Explain how the focal length changes as a convex lens becomes flatter?

The focal length of a lens is the distance from the center of the lens to the point at which it focuses light rays. The bigger the focal length, the more powerful the lens. ChaCha!


Length of a lens is the distance from the center of the lens to its principal focus?

It is called the focal length. It is equal to 1/2 times r, and is positive on concave mirrors and negative on convex mirrors.


Does the focal lens length have three classifications?

yes, focal lens length has three classifications


What is defined as the distance between a lens and its focal point?

focal length of the lens