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Physics Question on Semiconductor electronics: materials, devices and simple circuits

A dimensionless quantity is constructed in terms of electronic charge ee, permittivity of free space ϵ0\epsilon_0 , Planck’s constant ℎ, and speed of light c. If the dimensionless quantity is written as eαϵ0βhγcδe^\alpha\epsilon_0^\beta h^\gamma c^\deltaand n is a non-zero integer, then(α,β,γ,δ)(\alpha, \beta,\gamma,\delta) is given by

A

(2n,−n,−n,−n)(2n,-n,-n,-n)

B

(n,−n,−2n,−n)(n,-n,-2n,-n)

C

(n,−n,−n,−2n)(n,-n,-n,-2n)

D

(2n,−n,−2n,−2n)(2n,-n,-2n,-2n)

Answer

(2n,−n,−n,−n)(2n,-n,-n,-n)

Explanation

Solution

The correct option is (A):(2n,−n,−n,−n)(2n,-n,-n,-n)