What does principle of similarity or model law state? - Heat Transfer

Q.  The principle of similarity or model law states that
- Published on 11 Aug 15

a. if the ratios of linear dimensions, forces, velocities, etc. of two systems are the same, then their behavior will be different as per the dimensions
b. if the ratios of linear dimensions, forces, velocities, etc. of two systems are the same, then their behavior will be similar
c. if the ratios of linear dimensions, forces, velocities, etc. of two systems are the different, then only their behavior will be similar
d. none of the above

ANSWER: if the ratios of linear dimensions, forces, velocities, etc. of two systems are the same, then their behavior will be similar

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