MCQOPTIONS
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| 1. |
Which of the following is not the dimension of optical flat Type A as per IS : 5440—1969 in mm ?$ |
| A. | 25 x 10 |
| B. | 50 x 30 |
| C. | 30 x 10 |
| D. | 125 x 30 |
| Answer» D. 125 x 30 | |