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Let the focal length of an eye-piece be 2.5 cm. For a telescope of magnification 100, the focal length of the objective should be:a)250 cmb)40 cmc)2.5 × 10-2 cmd)100 cmCorrect answer is option 'A'. Can you explain this answer? for CTET & State TET 2026 is part of CTET & State TET preparation. The Question and answers have been prepared according to the CTET & State TET exam syllabus. Information about Let the focal length of an eye-piece be 2.5 cm. For a telescope of magnification 100, the focal length of the objective should be:a)250 cmb)40 cmc)2.5 × 10-2 cmd)100 cmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CTET & State TET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Let the focal length of an eye-piece be 2.5 cm. For a telescope of magnification 100, the focal length of the objective should be:a)250 cmb)40 cmc)2.5 × 10-2 cmd)100 cmCorrect answer is option 'A'. Can you explain this answer?.

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