Question
Two protons and two electrons are hanging freely at equal distances. Compare the repulsion force between proton and electron.
✓
Answer
The repulsion forces between two protons and two electrons will be equal because the magnitude of charge on the proton and electron is equal and the distances between them are also equal.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
An $\alpha-$particle after passing through a potential difference of $2 \times 10^6 V$ falls on a silver foil. The atomic number of silver is $47 .$ Calculate $(i)$ the kinetic energy of the $\alpha$-particle at the time of falling on the foil $(ii)$ the kinetic energy of the $\alpha$-particle at a distance of $5 \times 10^{-14} m$ from the nucleus and $(iii)$ the shortest distance from the nucleus of silver to which the $\alpha-$particle reaches.
→Calculate the energy released in MeV in the following nuclear reaction:
$^{238}_{92}\text{U}\rightarrow^{234}_{90}\text{Th} + ^{4}_{2}\text{He} + \text{Q}$
$\bigg[\text{Mass of } ^{238}_{92}\text{U} = 238.05079\text{ u}$
$\text{Mass of } ^{234}_{90}\text{Th} = 234.043630\text{ u}$
$\text{Mass of } ^{4}_{2}\text{He} = 4.002600\text{ u}$
$1\text{u} =193.5\text{MeV}/\text{c}^{2}\bigg]$
→$^{238}_{92}\text{U}\rightarrow^{234}_{90}\text{Th} + ^{4}_{2}\text{He} + \text{Q}$
$\bigg[\text{Mass of } ^{238}_{92}\text{U} = 238.05079\text{ u}$
$\text{Mass of } ^{234}_{90}\text{Th} = 234.043630\text{ u}$
$\text{Mass of } ^{4}_{2}\text{He} = 4.002600\text{ u}$
$1\text{u} =193.5\text{MeV}/\text{c}^{2}\bigg]$
What should be the value of R in the figure. for which the current in it is zero?
A ball is thrown vertically upward with a speed of 20m/s. Draw a graph showing the velocity of the ball as a function of time as it goes up and then comes back.
Discuss sign convention of distance for reflection by spherical mirror and refraction by spherical lens.
Think over the experiment number 2 of Faraday and Henry and tell :
(a) What will you do to obtain more deflection in the galvanometer?
(b) How will you show the presence of current in the absence of a galvanometer?
(a) What will you do to obtain more deflection in the galvanometer?
(b) How will you show the presence of current in the absence of a galvanometer?
Explain the effect of dielectric on the capacitance of parallel plate capacitor and derive the equation of dielectric constant.
The two rails of a railway track, insulated from each other and from the ground, are connected to a millivoltmeter. What will be the reading of the millivoltmeter when a train travels on the track at a speed of $180km/h^{-1}?$ The vertical component of earth's magnetic field is $0.2 \times 10^{-4}$ T and the rails are separated by 1m.
→What is being done to change the range of voltmeter?
Define the term 'Half-life' of a radioactive substance. Two different radioactive substances have half-lives $T_1$ and $T_2$ and number of undecayed atoms at an instant $N_1$ and $N_2$, respectively. Find the ratio of their activities at that instant.
→