Bissoy.com
Doctors Medicines MCQs Q&A

What is the image of the star at the focal plane called as?

What is the image of the star at the focal plane called as? Correct Answer Diffraction limited image

The image of a star at the focal plane of the telescope with perfect, unobstructed optics is a bright spot surrounded by a series of concentric dark and light rings. This image is called a diffraction limited image.

Related Questions

Among the five stars, Star Z, Star Y, Star X, Star W, and Star V, Star W is brighter than Star Y and Star X. Star Z is dimmer than Star Y but brighter than Star X. Star V is brighter than Star Z but dimmer than Star Y. Which star is the second brightest?
In the question given below are two conclusions followed by five statements. You have to choose the correct set of statements that logically satisfies conclusions. Conclusions: I. Some Star are Moon II. Some Sun are not Mars Statements: I. Some Sun are Moon, Some Moon are star and No star is Mars. II. Some Sun are Moon, All Moon are Star and No Star is Mars. III. All Sun are Moon, All Moon are Star and Some Star are Mars. IV. All Sun are Moon, Some Moon are Star and No Star is Mars. V. Some Sun are Moon, Some Moon are Star and No Moon is Mars.
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
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:
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?
Which of the following statements are always true? (i) When the object is placed nearer to the focal point of a converging lens the image gets bigger. (ii) When the object is placed farther away from the converging lens, the image gets smaller. (iii) When the object is placed very far away from the converging lens, the image distance approaches focal length.
Consider the following statement about the concave lens A. Magnified image cannot be obtained. B. Real and inverted image can be obtained. C. Image is always formed either on focus or focal length. D. Focal length is always negative. Which among the above statements is incorrect?
This are the following statements given regarding satellite’s motion a. A satellite in geostationary orbit lies in the same plane with equator b. A satellite in geosynchronous orbit lies in the same plane with equator c. A satellite in geostationary orbit does not lie in the same plane with equator, it is inclined at some angle from plane of equator d. A satellite in geosynchronous orbit does not lie in the same plane with equator, it is inclined at some angle from plane of equator Choose one of the following options
A line of 12 cm length is perpendicular to profile plane and the least distance from this line to profile plane is 6 cm. This is at a distance of 4 cm from the vertical plane and 5 cm from the horizontal plane. What is distance from the point on line far away from the profile plane to profile plane?
Statements: Some star are shine. All shine are white. Some star are not spring. Conclusion: I. Some white are star. II. Some shine are white. III. Some spring are star.