The ‘rad’ is the correct unit used to report the measurement of (a) the rate of decay of radioactive source.

your the answer  First order

your the answer First order

(a) Protons: Protons are not emitted during radioactive decay.

(i) World Bank classifies countries according to the Per Capita Income. (ii) Countries with PCI of more than US $ 12616 per annum and above are called rich countries. (iii) Countries with...

Initial angular velocity = 20 rad/s Therefore α = 2 rad/s2  t1 = ω/α 1 = 20/2 = 10 sec Therefore 10 sec it will come to rest. Since the same torque continues to act...

The correct answer is (d) photon.

The correct answer is (b) (In 2/λ) and 1/λ

(d) (i) The Gadgil Commission was an environmental research commission appointed by the Ministry of Environment and Forests of India. The Commission submitted the report to the Government of India...

Answer (A,C) solution 23290Th is converting into 21282Pb Change in mass number (A) = 20 ∴ no of α particle =20/4 = 5 Due to 5α particle, z will change by 10 unit. Since given change...

(c) As it is given that half life of given substance is 4 months. The amount of substance left after 4 months = 1/2  The amount of substance left after 8 months...