Class 11 political science book
Answer: v 50 cm Since image is real and of same size.
Question 11 A concave lens of focal length 15 cm forms political an image 10 cm from the lens.
class Thus, image distance, 6 cm Because is ve, so science a virtual image is formed at a distance of 6 cm behind the mirror.(b) Side/rear-view mirror of a vehicle.The refractive index of diamond.42.Solution: Since object size, h 5 cm, object distance, u -20 cm and radius of curvature, R 30 cm A virtual, erect image of height.2 cm is formed behind the mirror at a distance.6 cm from the mirror.Question 16 Find the focal length of a lens of power -2.0.At what distance from the mirror should a screen science political be placed, so that a sharp focused image can be obtained?Question 2 Light enters from air to glass having refractive index.50.Below are the introductions for each chapter and links for all the exercises, read them thoroughly.For better performance its focal length should be small.Question 4 Why do we prefer a convex book mirror as a rear-view mirror in vehicles?It forms virtual, upright and small images.Law of Refraction Refraction of light: Bending of light class ray class while passing from one medium to another medium A ray of light bends towards the normal, while going from rarer to denser medium And bends away from the normal while going from denser to rarer.The path of light (always travel in straight line) is ray of light Characteristics of light Rectilinear propagation of light Light travels with a speed of 3 108 m/s in air/vaccum.Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula (Derivation not required Magnification. Answer: lite Here : Object hard distance, u -25 cm, Object height, h 5 cm, Focal length, f 10 cm According to political the lens formula, we have The positive value of v shows that the image is formed at the other side of the lens.
Which book is best for class 11 maths?
An object is placed at a crack distance of 10 cm from a convex mirror of focal length.
The mirror is likely to be (a) plane (b) concave (c) convex (d) either plane or convex.Ncert solutions for 11th serial standard Maths subject covers the chapters which are present in the textbook, exercise-wise.Hold a highly polished steel spoon curved inwards close to your face and plus move message it slowly away from your face.Answer: Focal length x Radius of curvature x 20 cm 10 cm Question 3 Name a mirror that can give an erect and enlarged image of an object.Medium A is greater than unity.Ncert (a) Between principal focus and centre of curvature (b) At centre of curvature (c) Beyond centre of curvature (d) Between pole plus of the mirror and its principal focus Answer: (d) Question.Light Reflection and Refraction Mind Map.