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Starting with a sample of pure .^(66)Cu,...

Starting with a sample of pure `.^(66)Cu, 7//8` of it decays into `Zn` in `15` minute. The corresponding half-life is:

A

10 min

B

15 min

C

5 min

D

`7½ ` min

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Starting with a sample of pure .^(66)Cu, 1/8 of it decays into Zn in 15 minutes. The corresponding half life is

    A
    `(7)1/2` minutes
    B
    5 minutes
    C
    15 minutes
    D
    10 minutes

  • Starting with a sample of pure .^66 Cu, 7//8 of it decays into Zn in 15 min . The corresponding half-life is.

    A
    10 min
    B
    5 min
    C
    15 min
    D
    `7 (1)/(2) min`

  • Starting with a sample of pure ^66Cu , 3/4 of it decays into Zn in 15 minutes. The corresponding half-life is

    A
    (a) 5 minutes
    B
    (b) 7.5 minutes
    C
    (c) 10 minutes
    D
    (d) 3.5 minutes