For pair production i.e. for the production of electron and positron, the incident photon must have a minimum frequency of the order of

For pair production i.e. for the production of electron and positron,

1.	For pair production i.e. for the production of electron and positron, the incident photon must have a minimum frequency of the order of
Answer» `10^(18) s^(-1)` `10^(21) s^(-1)` `10^(25) s^(-1)` `10^(30)s^(-1)` ANSWER :B

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For pair production i.e. for the production of electron and positron, the incident photon must have a minimum frequency of the order of

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