Question:
In a metallurgical microscope the power of the objective is '40X' and that of eye piece is '10X' then the overall magnification of the microscope is
In a metallurgical microscope the power of the objective is '40X' and that of eye piece is '10X' then the overall magnification of the microscope is
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Magnification is multiplicative, not additive. Always multiply the lenses.
Updated On: Jul 4, 2026
- 50X
- 40X
- 4X
- 400X
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The Correct Option is D
Solution and Explanation
Step 1: Concept
The total magnification of a compound microscope is the product of the individual magnifications of the lens systems.
Step 2: Meaning
The objective lens produces a primary magnified image, which is then further magnified by the eyepiece (ocular lens).
Step 3: Analysis
Given Objective Power = 40X and Eyepiece Power = 10X. Total Magnification = $40 \times 10$.
Step 4: Conclusion
The overall magnification is 400X. Final Answer: (D)
The total magnification of a compound microscope is the product of the individual magnifications of the lens systems.
Step 2: Meaning
The objective lens produces a primary magnified image, which is then further magnified by the eyepiece (ocular lens).
Step 3: Analysis
Given Objective Power = 40X and Eyepiece Power = 10X. Total Magnification = $40 \times 10$.
Step 4: Conclusion
The overall magnification is 400X. Final Answer: (D)
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