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A microscope has its main scale with 20 divisions in 1 cm and vernier scale with 25 divisions, the length of which is equal to the length of 24 divisions of main scale. The least count of microscope is:
  • a)
    0.05 cm
  • b)
    0.5 cm
  • c)
    5.0 cm
  • d)
    0.002 cm
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A microscope has its main scale with 20 divisions in 1 cm and vernier ...
25* vernier scale reading (vsd) = 24* main scale reading (msd)
1vsd = 0.96 msd
Least count = 1msd - 1vsd=1msd-0.96 msd = 0.04 msd
1 msd = 1/20 cm
So, least count 
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A microscope has its main scale with 20 divisions in 1 cm and vernier ...
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A microscope has its main scale with 20 divisions in 1 cm and vernier ...
25* vernier scale reading (vsd) = 24* main scale reading (msd)
1vsd = 0.96 msd
Least count = 1msd - 1vsd=1msd-0.96 msd = 0.04 msd
1 msd = 1/20 cm
So, least count 
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A microscope has its main scale with 20 divisions in 1 cm and vernier scale with 25 divisions, the length of which is equal to the length of 24 divisions of main scale. The least count of microscope is:a)0.05 cmb)0.5 cmc)5.0 cmd)0.002 cmCorrect answer is option 'D'. Can you explain this answer?
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A microscope has its main scale with 20 divisions in 1 cm and vernier scale with 25 divisions, the length of which is equal to the length of 24 divisions of main scale. The least count of microscope is:a)0.05 cmb)0.5 cmc)5.0 cmd)0.002 cmCorrect answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A microscope has its main scale with 20 divisions in 1 cm and vernier scale with 25 divisions, the length of which is equal to the length of 24 divisions of main scale. The least count of microscope is:a)0.05 cmb)0.5 cmc)5.0 cmd)0.002 cmCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A microscope has its main scale with 20 divisions in 1 cm and vernier scale with 25 divisions, the length of which is equal to the length of 24 divisions of main scale. The least count of microscope is:a)0.05 cmb)0.5 cmc)5.0 cmd)0.002 cmCorrect answer is option 'D'. Can you explain this answer?.
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