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A rock is found to contain U-238 and Pb-...

A rock is found to contain U-238 and Pb-206 in the ratio of 3 : 2. If `t""_(1//2)` of U-238 is `4.5xx10""^(-9)` years. Calculate the age rock?

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(a) On analysis a sample of uranium ore was found to contian 0.277g of ._(82)Pb^(206) and 1.667g of ._(92)Pb^(206) and 1.667g of ._(92)U^(238) . The half life period of U^(238) is 4.51xx10^(9) year. IF all the lead were assumed to have come from decay of ._(92)U^(238) , What is the age of earth? (b) An ore of ._(92)U^(238) is found to contain ._(92)U^(238) and ._(82)Pb^(206) in the weight ratio of 1: 0.1 The half-life period of ._(92)U^(238) is 4.5xx10^(9) year. Caluculate the age of ore.

(a) On analysis a sample of uranium ore was found to contain 0.277g of ._(82)Pb^(206) and 1.667g of ._(92)U^(238) . The half life period of U^(238) is 4.51xx10^(9) year. If all the lead were assumed to have come from decay of ._(92)U^(238) , What is the age of earth? (b) An ore of ._(92)U^(238) is found to contain ._(92)U^(238) and ._(82)Pb^(206) in the weight ratio of 1: 0.1 The half-life period of ._(92)U^(238) is 4.5xx10^(9) year. Calculate the age of ore.

._(92)U^(238) is radioactive and it emits alpha and beta particles to form ._(82)Pb^(206). Calculate the number of alpha and beta particles emitted in this conversion. An ore of ._(92)U^(238) is found ot contain ._(92)U^(238) and _(82)Pb^(206) in the weight ratio of 1: 0.1. The half- life -period of ._(92)U^(238) is 4.5xx 10^(9) yr. Calculate the age of the ore.

A sample of rock from moon contains equal number of atoms of uranium and lead (t""_(1//2)for U=4.5xx10""^(9) year). The age of the rock would be

A sample of uranium mineral was found to contain Pb^(208) and U^(238) in the ratio of 0.008 : 1. Estimate the age of the mineral (half life of U^(238) is 4.51 xx 10^(9) years).

A sample of uranium mineral was found to contain Pb^(208) and U^(238) in the ratio of 0.008 : 1. Estimate the age of the mineral (half life of U^(238) is 4.51 xx 10^(9) years).

The disintegration constant of .^(238)U is 1.54 xx 10^(-10) "years"^(-1) . Calculate the half life period of .^(238)U .

A sample of rock from moon contains equal number of atoms of uranium and lead ( t_(1//2)" for "U=4.5xx10^(9) years). The age of the rock would be :

On analysis a sample of uranium are was found to contain 227g of ._(82)Pb^(208) and 1.667 g of ._(92)U^(238) . The half life peiod of U^(238) is 4.51 xx 10^(9) yrs. If all the lead was assumed to have come from decay of ._(92)U^(238) , what is the age of the earth?