JEE Main 2025 (Online) 2nd April Evening Shift | Geometrical Optics Question 16 | Physics

A bi-convex lens has radius of curvature of both the surfaces same as $1 / 6 \mathrm{~cm}$. If this lens is required to be replaced by another convex lens having different radii of curvatures on both sides $\left(R_1 \neq R_2\right)$, without any change in lens power then possible combination of $R_1$ and $R_2$ is :

$\frac{1}{3} \mathrm{~cm}$ and $\frac{1}{7} \mathrm{~cm}$

$\frac{1}{5} \mathrm{~cm}$ and $\frac{1}{7} \mathrm{~cm}$

$\frac{1}{3} \mathrm{~cm}$ and $\frac{1}{3} \mathrm{~cm}$

$\frac{1}{6} \mathrm{~cm}$ and $\frac{1}{9} \mathrm{~cm}$

JEE Main 2025 (Online) 2nd April Morning Shift

MCQ (Single Correct Answer)

-1

JEE Main 2025 (Online) 2nd April Morning Shift Physics - Geometrical Optics Question 16 English

A spherical surface separates two media of refractive indices 1 and 1.5 as shown in figure. Distance of the image of an object ' O ', is :

( C is the center of curvature of the spherical surface and R is the radius of curvature)

0.24 m left to the spherical surface

0.24 m right to the spherical surface

0.4 m left to the spherical surface

0.4 m right to the spherical surface

JEE Main 2025 (Online) 2nd April Morning Shift

MCQ (Single Correct Answer)

-1

A slanted object $A B$ is placed on one side of convex lens as shown in the diagram. The image is formed on the opposite side. Angle made by the image with principal axis is :

JEE Main 2025 (Online) 2nd April Morning Shift Physics - Geometrical Optics Question 17 English

$-\alpha$

$-\frac{\alpha}{2}$

$-45^{\circ}$

$+45^{\circ}$

JEE Main 2025 (Online) 29th January Evening Shift

MCQ (Single Correct Answer)

-1

A convex lens made of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water (refractive index = 1.33), its focal length changes to

96 cm

72 cm

24 cm

48 cm

PREVIOUS NEXT

Questions Asked from Geometrical Optics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions