An emulsion explosive of specific gravity 1.25 is used for blasting in an iron

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Question

An emulsion explosive of specific gravity 1.25 is used for blasting in an iron ore formation having
P-wave velocity of 3000 m/s and specific gravity of 3.20. For an explosive impedance to rock
impedance ratio of 0.5, the desired velocity of detonation of the explosive in m/s is

Options:

A . 3840

B . 4000

C . 4200

D . 7680

Answer: Option A

-NA-

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