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प्रश्न
Which one of the following is not the advantage of LED?
विकल्प
Long life and ruggedness.
Fast action and no warm up time is required.
Frequency can be easily changed.
It emits lights of different colours.
MCQ
उत्तर
Frequency can be easily changed.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
