Question

plz do it i need it its very important plzzzzzz​

Answer 1

Answer:

21.333

Step-by-step explanation:

& B of threshold frequencies v/2 and v/3 respectively, the ratio of the maximum kinetic energy of electrons emitted from A to that from B is (a) 2:3 (b) 3:4 (c) 1:3 (d) v3:12

Answer 2

Answer:

ok I give you answer but you mark me brain list