Choose the appropriate word from the options given to complete the following sentence.
The newest fibre optic cables that carry telephone calls are made of glass so ___ that a piece 100 meters thick is clearer than a standard windowpane.
Choose the appropriate word from the options given to complete the following sentence.
The newest fibre optic cables that carry telephone calls are made of glass so ___ that a piece 100 meters thick is clearer than a standard windowpane.
Solution
✅ Correct Option: 3
The clue is 'clearer than a standard windowpane', which is about how well light passes through. 'Transparent' matches this. 'Fragile' concerns breakability, 'tangible' means touchable, and 'iridescent' refers to shifting rainbow colours, none of which explain clarity.
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