NEET 2022
- Exam
- NEET
- Year
- 2022
- Subject
- Physics
- Chapter
- Ray Optics
NEET 2022 · Physics · Ray Optics
An astronomical refracting telescope is being used by an observer...
An astronomical refracting telescope is being used by an observer to observe planets in normal adjustment. The focal lengths of the objective and eye piece used in the construction of the telescope are and respectively. Consider the following statements about the telescope:
(a) The distance between the objective and eye piece is
(b) The magnification of the telescope is
(c) The image of the planet is erect and diminished
(d) The aperture of eye piece is smaller than that of objectie
The correct statements are:
Options
- A(a), (b) and (c)
- B(b), (c) and (d)
- C(c), (d) and (a)
- D(a), (b) and (d)
Correct answer
D. (a), (b) and (d)
Step-by-step solution
Given,
For normal adjustment,
The image formed is inverted and magnified, and the aperture of objective is larger than eye piece of the telescope.
are focal lengths of objective & eye piece respectively.)