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In this paper, we discuss the impact of the following laboratory experimentsand astrophysical observation of neutron stars (NSs) on its equation of state(EoS): (a) The new measurement of neutron skin thickness of $\rm ^{208} \! Pb$,$R_{\rm skin}^{208} = 0.29 \pm 0.07$ fm by the PREX-II experiment. (b) The massmeasurement of PSR J0740+6620 has been slightly revised down by includingadditional $\sim 1.5$ years of pulsar timing data. As well as the radiusmeasurement of PSR J0740+6620 by joint NICER/XMM-Newton collaboration which hasa similar size to PSR J0030+0451. We combine these information using Bayesianstatistics along with the previous LIGO/Virgo and NICER observations of NSusing a hybrid nuclear+piecewise polytrope (PP) EoS parameterization. Ourfindings are as follows: (a). Adding PREX-II result yields the value ofempirical parameter $L = 69^{+21}_{-19}$ MeV, $R_{\rm skin}^{208} =0.20_{-0.05}^{+0.05}$ fm, and radius of a $1.4 M_{\odot}$ ($R_{1.4}) =12.75_{-0.54}^{+ 0.42}$ km at $1 \sigma$ confidence interval (CI). We findthese inferred values are mostly dominated by the combined astrophysicalobservations as the measurement uncertainty in $R_{\rm skin}^{208}$ by PREX-IIis much broader. Also, a better measurement of $R_{\rm skin}^{208}$ might havea little effect on the radius of low mass NSs, but for the high masses therewill be almost no effect. (b) After adding The revised mass and radiusmeasurement of PSR J0740+6620, we find the inferred radius of NSs is slightlypushed towards the larger values and the uncertainty on the radius of a $2.08M_{\odot}$ NS is moderately improved.

Impact of PREX-II and combined Radio/NICER/XMM-Newton's mass-radius measurement of PSRJ0740+6620 on the dense matter equation of state