Physics, asked by SRISAI1744, 5 hours ago

A lens can be characterized by its power, which

Answers

Answered by shalukutty30082003
0

Answer:

The power of the lens is used to know the strength of lens which means how strongly the light get converge or diverge when it is passing through the lens.

Answered by krishna210398
0

Answer:

The power of the lens is used to know the strength of lens which means how strongly the light get converge or diverge when it is passing through the lens.

Explanation:

The ability of a lens to bend the light rays is called power of lens.

A convex lens converge the light rays towards the principal axis whereas a concave lens diverges the light rays away from the principal axis. In this way a lens bends the light rays. A lens of shorter focal length bends the light ray more, and have greater power. Thus power of a lens is defined as the reciprocal of its focal length (f) in metres.

Power of lens P=f(in meters)1

Unit of power of lens is 'metre' and its S.I. unit is 'dioptre' which is denoted by ′D′.

The power of a convex lens a positive and that of a concave lens is negative.

A lens is a bit of obvious fabric, typically glass, this is used to consciousness or disperse a beam of light. It makes use of the refraction belongings of light. Refraction is the change located in light’s route whilst it travels from one medium to some other. The lens focuses the mild to some extent and bureaucracy the photo. It’s in particular used as a touch lens in our specifications, in the magnifying glass, microscopes, and so on.

The focal duration is a degree of ways sharply the system converges or diverges light; it is the inverse of the lens’s optical electricity.

while a focal point or focal point is a factor at which mild from infinity gets converged after passing through the lens. it's miles denoted by means of F.  

therefore, the space or the length of the pole of the lens to its focal factor is referred to as its Focal period. it is denoted through f.

A lens can be characterized by its power, which

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