Civil Engineering MCQAE Level Civil Engineering
If focal length of object glass is 25 cm and distance from object glass to the trunnion axis is 15 cm, the additive constant is
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Choose the correct answer
A
0.1
B
0.4
C
0.6
D
1.33
Correct Answer
B. 0.4
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Additive constant = f + d = 25 + 15 = 40 cm = 0.4 m
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.