Question

The final image formed by an astronomical telescope is

• A. real, erect and diminished
• B. virtual, inverted and diminished
• C. real, inverted and magnified
• D. virtual, inverted and magnified

Answer 1

The Correct Option is D

An astronomical telescope consists of two lenses: the objective lens and the eyepiece lens. The objective lens forms a real, inverted, and diminished image of a distant object. This image then serves as the object for the eyepiece lens, which forms a magnified, virtual, and inverted image for the observer. Hence, the final image is virtual, inverted, and magnified.

The final image formed by an astronomical telescope is \({\text{virtual, inverted, and magnified}} \), so the correct answer is (D).

Answer 2

An astronomical telescope consists of two lenses: an objective lens and an eyepiece. The objective lens is a large lens that collects light from a distant object and forms a real, inverted, and diminished image at its focal plane. This image is then magnified by the eyepiece lens, which acts as a magnifier to produce the final image that the observer sees. For an astronomical telescope, the final image formed by the eyepiece is:

• Virtual, because the eyepiece creates an image that appears to come from a point behind the lens.
• Inverted, because the initial real image formed by the objective is inverted, and the eyepiece does not flip it back.
• Magnified, as the eyepiece magnifies the real image formed by the objective lens.

Thus, the correct answer is (D): virtual, inverted and magnified.