![A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure. Refractive index n of th efirst lens is 1.5 and that of the second lens if 1.2 A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure. Refractive index n of th efirst lens is 1.5 and that of the second lens if 1.2](https://d10lpgp6xz60nq.cloudfront.net/physics_images/BMS_V04_C01_E01_504_Q01.png)
A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure. Refractive index n of th efirst lens is 1.5 and that of the second lens if 1.2
![A concave convex figure lens made of glas (mu=1.5) has surface of radii 20 cm and 60 cm. a. Locate the image ofan object placed 80 cm to the left of the A concave convex figure lens made of glas (mu=1.5) has surface of radii 20 cm and 60 cm. a. Locate the image ofan object placed 80 cm to the left of the](https://d10lpgp6xz60nq.cloudfront.net/question-thumbnail/en_647761829.png)
A concave convex figure lens made of glas (mu=1.5) has surface of radii 20 cm and 60 cm. a. Locate the image ofan object placed 80 cm to the left of the
![A glass sphere of index 1.5 and radius 40 cm has half its hemispherical surface silvered. The point where a parallel beam of light, coming along a diameter, will focus (or appear A glass sphere of index 1.5 and radius 40 cm has half its hemispherical surface silvered. The point where a parallel beam of light, coming along a diameter, will focus (or appear](https://d10lpgp6xz60nq.cloudfront.net/question-thumbnail/en_646682362.png)
A glass sphere of index 1.5 and radius 40 cm has half its hemispherical surface silvered. The point where a parallel beam of light, coming along a diameter, will focus (or appear
![Two identical thin plano - convex glass lenses (refractive index 1.5 ) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The Two identical thin plano - convex glass lenses (refractive index 1.5 ) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The](https://d2rrqu68q7r435.cloudfront.net/images/2016719/83cf3241-6bdd-4afb-b7bd-2343556c5ace.jpg)
Two identical thin plano - convex glass lenses (refractive index 1.5 ) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The
![A parallel sided block of glass of refractive index 1.5 which is 36 mm thick rests on the floor of a tank which is filled with water (refractive index = 4/3). The A parallel sided block of glass of refractive index 1.5 which is 36 mm thick rests on the floor of a tank which is filled with water (refractive index = 4/3). The](https://d10lpgp6xz60nq.cloudfront.net/question-thumbnail/en_643108641.png)