AIIMS 2019 Physics Telescope Magnification MCQ Question

The expression for magnification $m$ is given by the formula $m = \frac{f₀}{fₑ}$, where $f₀$ is the object distance and $fₑ$ is the image distance. In this case, substituting $f₀ = 15$ and $fₑ = 1$ yields $m = \frac{15}{1} = 15$, indicating that the image is magnified 15 times. However, if the question implies that the actual magnification observed is 10, it suggests a misunderstanding in the values provided or the context of the question. Options (2) 10, (3) 5, and (4) 20 do not align with the calculation based on the given formula, as they do not reflect the correct ratio derived from the stated distances.