Physics - Geometrical Optics Question with Solution | TestHub

The resolving power of a telescope is given by the formula $RP=\frac{D}{1.22\lambda }$, where $D$ is the diameter (aperture) of the objective lens and $\lambda$ is the wavelength of light.

From this relation, the resolving power is directly proportional to the aperture $D$. Therefore, an astronomical telescope is designed with a large aperture to increase its resolving power, which allows it to have high resolution and distinguish between closely spaced objects.

Answer: have high resolution.