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The ratio of the focal length of the objective to the focal length of the eyepiece is greater than one for

The ratio of the focal length of the objective to the focal length of the eyepiece is greater than one for Correct Answer A telescope

CONCEPT:

Microscope

Telescope

The microscope is used to see very small objects. For Ex. Amiba, Bacteria, etc.

The telescope is used to see astronomical objects. For Ex. Planets, Moons and Galaxies, etc.

The microscope consists of two convex lenses (Eyepiece and Objective) of different focal lengths.

The telescope also consists of two (Eyepiece and Objective) convex lenses of different focal lengths.

The focal length of the eyepiece is larger than the focal length of the objective for a microscope.

The focal length of the eyepiece is smaller than the focal length of the objective for a telescope.

 

EXPLANATION:

  • As the objective has a larger focal length than that of the eyepiece, so the ratio of the focal length of the objective to the focal length of the eyepiece is greater than one for a telescope.

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  • The radius of the objective of the telescope is kept large so that more light can enter into the telescope so that the image appears brighter and clearer.

Related Questions

Which statement is correct about telescope: a) The focal length of the objective lens is more than the eyepiece. b) The focal length of the eyepiece is more than the objective lens. c) The aperture of the objective lens is more than the eyepiece. d) The aperture of the eyepiece is more than the objective lens.
Consider the following statements   1. The focal length of the eyepiece is larger than the focal length of the objective. 2. The focal length of the eyepiece is smaller than the focal length of the objective. 3. The aperture of the eyepiece lens is larger than the objective lens. Which of the following statements is/are INCORRECT about a compound microscope?
In case of a compound microscope, which of the following statements is/are correct?
1. The focal length of the eyepiece is larger than the focal length of the objective.
2. The focal length of the eyepiece 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:
In case of compound microscope which of the following statements is/are correct? 1) The focal length of 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
Which of the following statements about optical microscope is/are correct? 1. Both the eyepiece and objective of a microscope are convex lenses. 2. The magnification of a microscope increases with increase in focal length of the objective. 3.The magnification of a microscope depends upon the length of the microscope tube. 4. The eyepiece of a microscope is a concave lens. Select the correct answer using the code given below:
Which of the following statements about optical microscope is/are correct?
1. Both the eyepiece and objective of a microscope are convex lenses.
2. The magnification of a microscope increases with increases in focal length of the objective.
3. The magnification of a microscope depends upon the length of the microscope tube.
4. The eyepiece of a microscope is a concave lens.
Select the correct answer:
A microscope of objective focal length 1 cm and an eyepiece of focal length 2.0 cm has a tube length of 20 cm. What will be the magnification of the microscope?
The focal length of the objective lens of a telescope is 50 cm. If the magnification of the telescope is 25, then the focal length of the eyepiece is
There are six friends who have different height and they stand according to their height information as given below. Q is greater than P and S. M is greater than P. T is greater than P who is greater than O. M is greater than Q. T is smaller than Q. Who among the following is the smallest in height?
For a compound microscope consider the following statements: The eyepiece is placed nearest to the object and produces a real image. The objective lens is placed after the eyepiece and produces a virtual image. Which of the above statements are correct