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Which of the following statements are co...

Which of the following statements are correct
i) Positron is predicted by Dirac and discovered by Anderson
ii) Liquid drop model of nucleus is developed by Bohr and Wheeler
iii) Carbon cycle was proposed by Bethe
iv) Fission reaction is first observed by OttoHahn ans Strassman

A

All are ture

B

Only I,ii & iv are true

C

Only i, iii & iv are true

D

Only iii & iv are true

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