Define Standard meter.
ICSE Class 9 Physics Chapter Measurements and Experimentation
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in 1983 metre was re defined in the terms of speed of light according to which one metre is the distance travelled by the light in 1/299,792,458of a second in air
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Answer:
The standard meter is the length of the path travelled by light in vacuum during a time interval of
1/299792458 of a second.
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