When an object is placed 40 cm away from a spherical mirror an image of magnification 1/2 is produced. To obtain an image with magnification of 1/3, the object is to be moved:

(D) 40 cm away from the mirror.

(A) 80 cm away from the mirror.

(C) 20 cm away from the mirror.

Optics: JEE Main 2025 Physics question

JEE Main 2025 · 4 Apr, Morning shift · Q31

JEE Main 20254 Apr, Morning shiftPhysicsEasyOptics190× since 2002

When an object is placed 40 cm away from a spherical mirror an image of magnification

\frac{1}{2}

is produced. To obtain an image with magnification of

\frac{1}{3}

, the object is to be moved :

JEE Main 2025 · 4 Apr, Morning shift · Q31

JEE Main 20254 Apr, Morning shiftPhysicsEasyOptics190× since 2002

When an object is placed 40 cm away from a spherical mirror an image of magnification

\frac{1}{2}

is produced. To obtain an image with magnification of

\frac{1}{3}

, the object is to be moved :