Question

1)Find the Magnification of the convex lens: object of height 9cms and the image height is 36 cms


2)The refractive index of four substances is given below. The speed of the light is maximum in

(a) Kerosene (Refractive index 1.44 ) (b) Water (Refractive index 1.33)

(c) Crown Glass (Refractive index 1.52) (d) Diamond (Refractive index 2.42)




please tell the answer fast​

Answer 1

1)m=-v/u=-36/9=-4cm

2)(d) Diamond (Refractive index 2.42)