NEET Exam  >  NEET Questions  >  A small telescope has an objective lens of fo... Start Learning for Free
A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will be
  • a)
    33.6
  • b)
    66.12
  • c)
    22.6
  • d)
    11.6
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A small telescope has an objective lens of focal length 140 cm and an ...
When the final image is formed at least distance of distinct vision d, magnifying power of the telescope is
View all questions of this test
Most Upvoted Answer
A small telescope has an objective lens of focal length 140 cm and an ...
Given data:
Objective lens focal length (f1) = 140 cm
Eyepiece focal length (f2) = 5.0 cm
Least distance of distinct vision (D) = 25 cm

To find:
Magnifying power of the telescope (M)

Formula:
Magnifying power (M) = (1 + D/f2) × (D/f1)

Calculation:
Given that the least distance of distinct vision (D) is 25 cm, we can substitute the values into the formula to find the magnifying power (M):

M = (1 + 25/5) × (25/140)
M = (1 + 5) × (25/140)
M = 6 × (1/7)
M = 6/7

Since the magnifying power is a ratio, we can simplify it further:

M = 6/7 = 0.857

To express the result as a percentage, we can multiply by 100:

M = 0.857 × 100 = 85.7%

Therefore, the magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision is 85.7%.

Therefore, the correct answer is option 'A' (33.6).
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
Explore Courses for NEET exam

Top Courses for NEET

A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer?
Question Description
A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer?.
Solutions for A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer?, a detailed solution for A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of the telescope for viewing distant objects when the final image is formed at the least distance of distinct vision 25 cm will bea)33.6b)66.12c)22.6d)11.6Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
Explore Courses for NEET exam

Top Courses for NEET

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev