Harish runs faster than Suresh in a given length. To compare the Harish and Suresh in this, the fundamental physical quantities involved are :
A
Length only
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B
Time only
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C
Length and time
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D
Neither length nor time
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Solution
The correct option is C Length and time Harish runs faster than Suresh relates to speed, speed is distance travelled per unit time. Hence to compare speed both length and time need to be compared.