Physics · 2020
NEET 2020 · 14 October · Code Z6 · Q99
The acceleration of an electron due to the mutual attraction between the electron and a proton when they are 1.6 apart is. (m_e ≃ 9 × 10^-31 kg,…
The acceleration of an electron due to the mutual attraction between the electron and a proton when they are $\displaystyle 1.6 \AA$ apart is.
$$\left(m_e \simeq 9 \times 10^{-31} \mathrm{~kg}, \quad e=1.6 \times 10^{-19} \mathrm{C}\right)
$$
(Take $\displaystyle \frac{1}{4 \pi \epsilon_0}=9 \times 10^9 \mathrm{~N} \mathrm{~m}^2 \mathrm{C}^{-2}$ )
Official answer
(2)
$\displaystyle 10^{22} \mathrm{~m} / \mathrm{s}^2$
More from Electric Charges and Fields
- A spherical conductor of radius 10 cm has a charge of 3.2 × 10^-7 C distributed uniformly. What is the magnitude of electric field at a point 15 cm…2020
- A square surface of side L meter in the plane of the paper is placed in a uniform electric field E (volt/m) acting along the same plane at an angle θ…2010
- A charge Q is enclosed by a Gaussian spherical surface of radius R. If the radius is doubled, then the outward electric flux will:2011
- Two identical charged spheres suspended from a common point by two massless strings of lengths l, are initially at a distance d(d ≪ l) apart because…2016
- A thin conducting ring of radius R is given a charge +Q. The electric field at the centre O of the ring due to the charge on the part A K B of the…2008
- An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric…2018
- Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is q and the force of…2025
- Two pith balls carrying equal charges are suspended from a common point by strings of equal length, the equilibrium separation between them is r. Now…2013
NEET (UG) 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.