$\ell n R=\ell n R_{o}-\lambda t$
$-\lambda$ is slope of straight line
$\lambda=\frac{3}{20}$
$t_{1 / 2}=\frac{\ell n 2}{\lambda}=4.62$
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| List$-I$ | List$-II$ |
| $(a)$ Isothermal | $(i)$ Pressure constant |
| $(b)$ Isochoric | $(ii)$ Temperature constant |
| $(c)$ Adiabatic | $(iii)$ Volume constant |
| $(d)$ Isobaric | $(iv)$ Heat content is constant |
Choose the correct answer from the options given below
$\overrightarrow{\mathrm{E}}_{1}=\mathrm{E}_{0} \hat{\mathrm{j}} \cos (\omega \mathrm{t}-\mathrm{kx})$ and
$\overrightarrow{\mathrm{E}}_{2}=\mathrm{E}_{0} \hat{\mathrm{k}} \cos (\omega \mathrm{t}-\mathrm{ky})$
At $t=0,$ a particle of charge $q$ is at origin with a velocity $\overrightarrow{\mathrm{v}}=0.8 \mathrm{c} \hat{\mathrm{j}}$ ($c$ is the speed of light in vacuum). The instantaneous force experienced by the particle is
