Can we change focal length of a given spherical mirror?

No, we cannot change focal length of a spherical mirror by changing the object distance (u), By changing u:v will change, but f will remain the same.

How is the focal length of a spherical mirror affected when it is immersed in glycerine?

No change. As the focal length of a mirror is not dependent on the refractive index of the medium it is in.

What happens to focal length of mirror in water?

When kept inside water, the laws of reflections are still valid, thus the focal length of the concave mirror does not change. Since water has a greater value of refractive index than air, the converging power of the lens will be less as compared to air. Thus the focal length of the convex lens will increase.

What happens to the focal length of concave lens when immersed in water?

when concave lens immersed in water the focal length of lens increases because focal length of lens is directly proportional to refractive index of medium and when immersed in water the medium become more dancer so its focal length increases.

On what factors does the focal length of a spherical mirror depends?

Focal length mainly depends on one factor: Radius of curvature R of the spherical mirror. If the mirror is in air or in another medium, then focal length = R/2. Focal length is independent of the medium, material of the mirror, frequency of the light rays, temperature etc.

How does focal length of a mirror change when object distance u from the mirror is changed?

Physical Science Mirror Formula: f does not change when object distance u from the mirror is changed,this is because the focal length of the mirror depends upon the curvature of the mirror. Hope it helps… Mark as brainliest.

How is the focal length of a spherical mirror related to its radius of curvature?

The relation between focal length (f) and radius of curvature (R) of a spherical mirror is that the focal length is equal to half of the radius of curvature i.e. f=R2.

How is the focal length of a convex lens affected when it is immersed in water?

Now since the focal length is inversely proportional to the (μ−1), therefore the focal length will increase. Hence the focal length of the lens increases when it is immersed in the water.

How does the nature and focal length of the lens change when it is immersed in medium having refractive index greater than the refractive index of the lens?

if n decreases, f increases. So if you immerse the convex lens in a liquid whose refractive index is greater than refractive index of material of lens then it will change its nature and become concave lens and thus it will start diverging the rays rather than focusing them on a single point.

What will happen to focal length of spherical lens if its surrounding medium is changed?

That behavior is not affected by the medium in which the light travels, so the mirror’s focal length would be no different in air or water.

On what factor does the focal length of a spherical mirror depend Can you change the focal length of a spherical mirror by changing the object distance from the mirror?

Answer Expert Verified. Focal length mainly depends on one factor: Radius of curvature R of the spherical mirror. If the mirror is in air or in another medium, then focal length = R/2. Focal length is independent of the medium, material of the mirror, frequency of the light rays, temperature etc.

What happens to the focal length of a spherical mirror in water?

Here is an explanation. If a spherical mirror is immersed in water, does its focal length change? For reflection in a mirror, the medium will not affect the focal length. focal length of a mirror is the distance between the pole and the principal focus. It is the point where the light rays converge after reflection.

What happens to a camera lens when immersed in water?

When immersed in water, the difference between light’s speed in the lens and the surrounding medium is less than the difference when it’s in air, and the focal length of a lens would be greater under water.

What happens to the refractive index of a lens in water?

When the lens is immersed in water the refractive index of the lens reduces. As already answered by Shashank, the focal length of a mirror remains the same as it works on the principle of reflection and reflection is independent of the medium. However, in case of a lens, the principle is that of refraction.

What is the focal length of a lens?

If you had asked about the focal length of a LENS, however, the answer would be different. Lenses work by REFRACTION, not reflection, and the angle of refraction is based on the difference between the speed of light in the lens compared to the surrounding medium.