Q. $1 e V$ is equivalent to:

1348 203 Rajasthan PMTRajasthan PMT 1999 Report Error

A

10 erg

B

$1.1 \times 1 0^{- 11}$ erg

C

$1.6 \times 1 0^{- 38}$ erg

D

$1.6 \times 1 0^{- 19}$ Joule

Solution:

$1 e V = 1.6 \times 1 0^{- 19}$ Joule