Answered: 2. Show that 1 1/2 (ɛ — eq)²4(r) = [p²… | bartleby

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The Klein-Gordon equation for a particle in external electromagnetic field is
2
ih d
Let
C at
e
—
C
p)
y = [(p - eA)² + M²c²]y
(r, t) = (r)e-iet/h

2. Show that
1
(ɛ — eq)²4(r) = [p² – 2e(A · p) + e²A² + M²c²]y(r)

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