Science Lesson Plan
Physics Lesson Plan On power of a lens, power of convex lens, power of concave lens, power of accommodation of eye, power of lens is measured in, negative power lens, for grade 9 and 10 for teachers teaching in CBSE And NCERT Based schools in English Medium.
Physics Lesson Plan of power of a lens definition
The ability of a lens to bend the light falling on it is called the power of a lens. Since the lens of shorter focal length will bend the light rays more will have more power. A convex lens converges the light rays towards the principal axis whereas a concave lens diverges the light rays away from the principal axis.
P = 1/F
where f is the focal length.
The power of a lens is defined as the inverse of its focal length (f) in meters (m).
The S.I. unit of power of a lens is diopter.
Physics Lesson Plan of power of concave lens
The power of the concave lens is negative. Concave lens surfaces have a virtual radius of curvature, and thus a negative curvature. Optical power is denoted by the same convention signs that are used for focal length.
Physics Lesson Plan of power of convex lens
The power of a convex lens (converging lens) is positive as its focal length is positive.
Physics Lesson Plan of power of lens is measured in
Physics Lesson Plan of power of lens class 10
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a concave lens of focal length 25 cm, handwritten notes in pdf download free, Free Study Material, 247studymaterial
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