Awave crest passes the boat every 4.0seconds. calculate the frequency of the wave in hertz

Explanation:

When proton or positron are released in between two parallel plates .

The force of proton = q E

here q is the charge and E is the electric field intensity between the plates

Thus m a = q E   or  a = q E/m ; here m is the mass of proton

Similarly the acceleration of positron = q E/m₀

here m₀ is the mass of positron

The mass of positron is much smaller than proton .

Thus acceleration of positron is much larger than that of proton.

The energy of proton = q V

here q is the charge on proton and V is the potential difference applied

Similarly , the energy of positron = q V

Here charge and potential on the positron is the same as that of proton .

Thus there energy will be same .