A simple microscope consists of a single convex lens. A compound microscope, which provides higher magnification, typically uses at least two lenses: an objective lens and an eyepiece lens. Both the objective lens and the eyepiece lens in a basic compound microscope setup are convex lenses.
A microscope may be a combination of:
Asked in UPSC NDA 1 2024 · Topic: Optics (Optical Instruments: microscopes, telescopes, human eye)
More Physics questions
- For a human eye, where u is the distance of an object from the eye, f is the focal length of the lens and v is the distance of image from the eye, which is the correct schematic graph ?
- In case of a compound microscope which of the following statements is / are correct? 1. The focal length of the eye piece is larger than the focal length of the objective 2. The focal length of the eye piece is smaller than the focal length of the objective 3. The image produced in a normal optical microscope is real 4. The image produced in a normal optical microscope is virtual Select the correct answer using the code given below:
- Which one of the following statements is not correct ?
- Consider the following statements about a microscope and a telescope : Both the eyepiece and the objective of a microscope are convex lenses. The focal length of the objective of a telescope is larger than the focal length of its eyepiece. The magnification of a telescope increases with the increase in focal length of its objective. The magnification of a microscope increases with the increase in focal length of its objective. Which of the statements given above are correct?
- Myopia is a defect in human vision where an image of a
- Ramesh cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
- Which one among the following is correct for a person suffering from myopia ?
- Myopia, also known as near-sightedness, can be corrected by use of :