Fill in the blanks with appropriate items : The half-life period of radioactive element _______ minute if 75% of it disintegrates in 40 min.

Fill in the blanks with appropriate items : The half-life period of ra

1.	Fill in the blanks with appropriate items : The half-life period of radioactive element _______ minute if 75% of it disintegrates in 40 min.
Answer» Correct Answer - 20 min. `t_(3//4)=2t_(1//2)=40 =2t_(1//2) rArr t_(1//2)=20 min`

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Fill in the blanks with appropriate items : The half-life period of radioactive element _______ minute if 75% of it disintegrates in 40 min.

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