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NEET-XII-Physics

neet 2020 questions with solutions year:2020

with Solutions - page 2
Qstn# 24 Prvs-QstnNext-Qstn
  • #24
    The energy required to break one bond in DNA is `` 10^{-20}J `` . This value in eV is nearly
    (A)6
    (B)0.6
    (C)0.06
    (D)0.006
    digAnsr:   C
    Ans : `` 1\,eV=1.6\times 10^{-19}\\,J ``
    `` 1\,J=\frac{1}{1.6\times 10^{-19}}eV ``
    `` 10^{-20}\,J=\frac{10^{-20}}{1.6\times 10^{-19}}eV ``
    `` =0.06\,eV ``