List of top Physics Questions on spherical lenses asked in JEE Advanced

A glass beaker has a solid, plano-convex base of refractive index 1.60, as shown in the figure. The radius of curvature of the convex surface (SPU) is 9 cm, while the planar surface (STU) acts as a mirror. This beaker is filled with a liquid of refractive index n up to the level QPR. If the image of a point object O at a height of ℎ (OT in the figure) is formed onto itself, then, which of the following option(s) is(are) correct?

List I contains four combinations of two lenses (1 and 2) whose focal lengths (in cm) are indicated in the figures. In all cases, the object is placed 20 cm from the first lens on the left, and the distance between the two lenses is 5 cm. List II contains the positions of the final images.
 

List-I		List-II
I		P	Final image is formed at 7.5 cm on the right side of lens 2.
II		Q	Final image is formed at 60.0 cm on the right side of lens 2
III		R	Final image is formed at 30.0 cm on the left side of lens 2.
IV		S	Final image is formed at 6.0 cm on the right side of lens 2.
		T	Final image is formed at 30.0 cm on the right side of lens 2.

Which one of the following options is correct?

A point object is placed at a distance of 20 cm from a thin planoconvex lens of focal length 15 cm. The plane surface of the lens is now silvered. The image created by the system is at

The graph between object distance u and image distance v for a lens is given below. The focal length of the lens is

A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length is of the ratio of their focal length is $\frac{3}{2}$ Their equivalent focal length is 30 cm. What are their individual focal lengths ?

11. A real image of a distant object is formed by a planoconvex lens on its principal axis. Spherical aberration

Which of the following form(s) a virtual and erect image for all positions of the object ?

A diminished image of an object is to be obtained on a screen 1.0 m from it. This can be achieved by placing

A biconvex lens of focal length f forms a circular image of radius r of sun in focal plane. Then which option is correct ?