Will the focal length of a spherical mirror change when immersed in water?

In case of spherical mirrors, there will be no change in the focal length of the mirrors when immersed in water. It is so because the focal length of mirrors does not depend on the external medium in which it is held.

Does the focal length of a spherical lens change in water?

In case of spherical mirrors (both concave and convex), there will be no change in the focal length of the mirrors when immersed in water.

When a spherical mirror is immersed in a liquid of refractive index then its focal length is?

If a spherical mirror is immersed in water its focal length will remain the same because the focal length is not influenced by the surrounding medium as it is the distance between the principal focus and the pole of the mirror.

When a spherical convex lens made up of glass is immersed in water its focal length?

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.

What happens to the focal length of a mirror if the distance of the object is changing?

No Change in focal length. Half of the radius of the spherical mirror is called the focal length OR focal length is the distance between the focal point and pole of the mirror.So it is independent of Object distance and image distance. So either we increase or decrease the object distance, focal distance remains same.

When a concave mirror is held underwater?

The focus of a concave mirror is situated at a distance which is half of the radius of curvature of the mirror. When kept inside water, the laws of reflections are still valid, thus the focal length of the concave mirror does not change.

When a lens is immersed in water?

When a lens is submerged in water, the focal length increases, and as focal length is inversely related to angular magnification, the power of the lens diminishes or decreases.

When convex lens is immersed in water its power?

Since focal length of convex lens increases when immersed in water, its power will decrease.

What happens to the focal length of a mirror when immersed?

What happens to the focal length of a mirror when it is immersed in water?, In case of spherical mirrors (both concave and convex), there will be no change in the focal length of the mirrors when immersed in water. This is because the focal length of mirrors does not depend on the external medium in which it is held.

What is the principle of a spherical mirror?

Answer Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror’s surface. 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.

What happens to the power of a lens when immersed in water?

When a lens is immersed in water then focal length increase and focal length is inversely proportional to the angular magnification that’s so the lens immersed in water the power decreases. How is the focal length of spherical mirror affected when immersed in glycerine?

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.