Q89
The electric field E(r, t) at a point r at time t in a metal due to the passage of electrons can be described by the equation ^2 E ( r ,\,t ) = 1c^2 [ ^2 E ( r ,\,t ) t^2 + '^2 E ( r ,\,t ) ] where, ' is a characteristic associated with the metal and c is the speed of light in vacuum. The dispersion relation corresponding to the plane wave solutions of the form exp [ i ( i . r - t ) ] is given by
The electric field E(r, t) at a point r at time t in a metal due to the passage of electrons can be described by the equation
where, is a characteristic associated with the metal and c is the speed of light in vacuum. The dispersion relation corresponding to the plane wave solutions of the form exp is given by
where, is a characteristic associated with the metal and c is the speed of light in vacuum. The dispersion relation corresponding to the plane wave solutions of the form exp is given by
A.
Answer
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C.
D.
Answer: Option A
Solution
Answer: Option A
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