Chapter 18 – Refraction at Spherical Surfaces

An equi-convex glass lens with radius of each face as R is placed in air (aug=3/2). “If there is water in the object space and air in the image space and given” .auw=4/3, the focal length of the lens is An equi-convex glass lens with radius of each face as R is placed in air [...]

Four lenses are made from the same type of glass, the radius of curvature of each face is given below. Which will have the greatest positive power Four lenses are made from the same type of glass the radius of curvature of each face is given below. Which will have the greatest positive power November [...]

A lens of refractive index n is put in a liquid of refractive index n’ . If focal length of lens in air is f, its focal length in liquid will be A lens of refractive index n is put in a liquid of refractive index n' . If focal length of lens in air [...]

The ray diagram could be correct 1. If n1=n2=n3 2. If n1=n2 and n1ng 4. Under no circumstances The ray diagram could be correct 1. If n1=n2=n3 2. If n1=n2 and n1ng 4. Under no circumstances November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 18 - Refraction at Spherical Surfaces , Part [...]

A thin equiconvex glass lens of refractive index 1.5 has power of 5 D. When the lens is immersed in a liquid of refractive index μ, it acts as a divergent lens of focal length 100cm. The value of μ of liquid is A thin equiconvex glass lens of refractive index 1.5 has power of [...]

In figure, an air lens of radius of curvature of each surface equal to 10cm ( R1 = R2 = 10 cm)is cut into a cylinder of glass of refractive index 1.5. The focal length and the nature of the lens is an air lens of radius of curvature of each surface equal to 10cm [...]

A concave lens of glass, refractive index 1.5 has both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as a A concave lens of glass it will behave as a : refractive index 1.5 has both surfaces of same radius of curvature R. On [...]

A convex lens of glass has power P in air. If it is immersed in water its power will be A convex lens of glass has power P in air. If it is immersed in water its power will be November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 18 - Refraction at [...]

The radius of curvature of the convex surface of a thin plano-convex lens is 15 cm and the refractive index of its material is 1.6. The power of the lens is The radius of curvature of the convex surface of a thin plano-convex lens is 15 cm and the refractive index of its material is [...]

The focal length of a glass lens in air is 10 cm. Its focal length in water will be (μg = 1.5 and μw = 1.33) The focal length of a glass lens in air is 10 cm. Its focal length in water will be (μg = 1.5 and μw = 1.33) November 17, 2020 [...]