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The magnifying power of telescope is high if
- a)the objective has a short focal length and the eye-piece has a long focal length
- b)both objective and eye-piece have short focal lengths
- c)the objective has a long focal length and the eye-piece has a short focal length
- d)both objective and eye-piece have long focal length
Correct answer is option 'C'. Can you explain this answer?
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The magnifying power of telescope is high ifa)the objective has a shor...
The Magnifying Power of Telescope
The magnifying power of a telescope is the ability of the telescope to make an object appear larger than its actual size. The magnifying power of a telescope is determined by the ratio of the focal length of the objective lens to the focal length of the eyepiece.
Magnifying Power = Focal Length of Objective Lens / Focal Length of Eyepiece
Factors Affecting Magnifying Power
There are two factors that affect the magnifying power of a telescope: the focal length of the objective lens and the focal length of the eyepiece.
Focal Length of Objective Lens
The objective lens is the lens that collects and focuses the light from the object being observed. The focal length of the objective lens determines the size of the image formed by the lens. The longer the focal length of the objective lens, the larger the image formed by the lens. Therefore, a telescope with an objective lens with a long focal length will have a higher magnifying power than a telescope with an objective lens with a short focal length.
Focal Length of Eyepiece
The eyepiece is the lens that magnifies the image formed by the objective lens. The focal length of the eyepiece determines the magnification of the image. The longer the focal length of the eyepiece, the lower the magnification of the image. Therefore, a telescope with an eyepiece with a short focal length will have a higher magnifying power than a telescope with an eyepiece with a long focal length.
Conclusion
Based on the above factors, it can be concluded that a telescope with an objective lens with a long focal length and an eyepiece with a short focal length will have the highest magnifying power. Therefore, option C, "the objective has a long focal length and the eye-piece has a short focal length" is the correct answer.
The magnifying power of a telescope is the ability of the telescope to make an object appear larger than its actual size. The magnifying power of a telescope is determined by the ratio of the focal length of the objective lens to the focal length of the eyepiece.
Magnifying Power = Focal Length of Objective Lens / Focal Length of Eyepiece
Factors Affecting Magnifying Power
There are two factors that affect the magnifying power of a telescope: the focal length of the objective lens and the focal length of the eyepiece.
Focal Length of Objective Lens
The objective lens is the lens that collects and focuses the light from the object being observed. The focal length of the objective lens determines the size of the image formed by the lens. The longer the focal length of the objective lens, the larger the image formed by the lens. Therefore, a telescope with an objective lens with a long focal length will have a higher magnifying power than a telescope with an objective lens with a short focal length.
Focal Length of Eyepiece
The eyepiece is the lens that magnifies the image formed by the objective lens. The focal length of the eyepiece determines the magnification of the image. The longer the focal length of the eyepiece, the lower the magnification of the image. Therefore, a telescope with an eyepiece with a short focal length will have a higher magnifying power than a telescope with an eyepiece with a long focal length.
Conclusion
Based on the above factors, it can be concluded that a telescope with an objective lens with a long focal length and an eyepiece with a short focal length will have the highest magnifying power. Therefore, option C, "the objective has a long focal length and the eye-piece has a short focal length" is the correct answer.
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Community Answer
The magnifying power of telescope is high ifa)the objective has a shor...
The objective piece of a telescope gathers light from distant objects and focuses them to the eyepiece forming a real and inverted image.This image acts as the object for the eyepiece. So, the objective piece has long focal length and the eyepiece have short focal length.
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The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer?
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The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer?.
The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The magnifying power of telescope is high ifa)the objective has a short focal length and the eye-piece has a long focal lengthb)both objective and eye-piece have short focal lengthsc)the objective has a long focal length and the eye-piece has a short focal lengthd)both objective and eye-piece have long focal lengthCorrect answer is option 'C'. Can you explain this answer?.
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