An electron is considered nearly massless.

Why electrons are considered as the universal constituents of matter?

Why electrons are considered as the universal constituents of matter?

Which of the following disease is now considered nearly eradicated from India

An electron is continuonsly accelerated in vacume tube by appliying potential difference if its de Brogle wavelength is decresed by 1% the change in the kinetic energy of the electron is nearly

Electrons from n = 2 to n= 1 in hydrogen atom is made to fall on a metal surface with work function 1.2ev. The maximum velocity of photo electrons emitted is nearly equal to

An electron is accelerated through a potential difference of 10,000V . Its de Broglie wavelength is, (nearly): (me=9xx10^(-31)kg)

An electron is projected as shown with speed u . If electron just fails to strike the upper plate, find range. (distance from starting point at which electron strike the lower plate again). Consider only electric force.

Why the melting points of NaF and MgO (990^(@)C and 2640^(@)C ) are so different although both have same number of electrons and nearly the same internuclear distance (236 pm and 216 pm)?

Two block A and B of masses 3m and m respectively are connected by a massless and nextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are resectively

In the arrangement shown, the mass m will ascend with an acceleration ( Pulley and rope are massless)