beta -particles are electrons. How are electrons emitted from a radioactive nuclei? What is a beta^(+) decay?

The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV. Find the stopping potential in volts.

Work function of nickel is 5.01 eV. When ultraviolet radiation of wavelength 200 Å is incident on it, electrons are emitted. What will be the maximum velocity of emitted electrons?

If you free a neutron from a nucleus, it will decay into three particles. Two of them are proton and electron. What is the third particle?

If you free a neutron from a nucleus, it will decay into three particles. Two of them are proton and electron. What is the third particle?

What is the change of atomic number Z of a nucleus when it emits a beta particle?

Calculate the energy emitted in terms of wave mumber when the electrons of hydrogen atom jumps from second to first orbit.

How does metaphase I differ from metaphase?

When the whole sheet of paper is spread on the table, it represents one plane.The incident ray, the normal at the point of incidence and the reflected ray are all in this pIane. When you bend the paper you create a plane different from the plane in which the incident ray and the normal lie. Then you do not seethe reflected ray.What does it indicate?

How does a current carrying wire differ from a wire without carrying current?