Consider the following statements:(a) Photon | vedclass

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(B) Statement $(a)$ is incorrect because a photon is a massless,neutral particle of light.Statement $(b)$ is correct; the nucleus is extremely small $

Vedclass · Accepted Answer

$b, d$

Vedclass · Answer

(B) Statement $(a)$ is incorrect because a photon is a massless,neutral particle of light.Statement $(b)$ is correct; the nucleus is extremely small $(10^{-15} \ m)$ compared to the atom $(10^{-10} \ m)$.Statement $(c)$ is incorrect because diffraction demonstrates the wave nature of light,while the photoelectric effect demonstrates the particle nature.Statement $(d)$ is correct; the dimensions of Planck's constant $(h)$ are $[ML^2T^{-1}]$,which are the same as the dimensions of angular momentum $(L = mvr = [M][LT^{-1}][L] = [ML^2T^{-1}])$.Therefore,the correct statements are $(b)$ and $(d)$.

$A$. Energy of ground state of $He^+$	$i$. $+6.04 \text{ eV}$
$B$. Potential energy of $I$ orbit of $H$ atom	$ii$. $-27.2 \text{ eV}$
$C$. Kinetic energy of $II$ excited state of $He^+$	$iii$. $8.72 \times 10^{-18} \text{ J}$
$D$. Ionization potential of $He^+$	$iv$. $-54.4 \text{ eV}$

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