Atomic and Nuclear Physics Answers

Electromagnetic radiation of frequency 9.0 x 10^14Hz is incident on a clean metal surface. The work function of the metal is 5.0 x 10^-19J. Determine the maximum kinetic energy of photoelectrons released from the metal surface

Calculate the velocity of an electron emitted by radiation of frequency 5.7 x 10^14Hz from a surface with a work function of 3.18 x 10^-19J

If sodium is irradiated with light of 439nm, determine the maximum possible kinetic energy of the emitted electrons in eV

One major limitation of X-Ray Machine is

A. Thermionic emission. B. Low emission. C. Energy loss by scattering. D. Heat Generation. E. Excitation process

The following set of nuclides (₆¹³C,¹⁴_{7 N,} ¹⁷₈O, and ³⁷₁₇C) are

A. Isotopes B. Isotones C. Undefined. D. Isobars. E. Isohel

A radiation of frequency 1016Hz falls on a photocathode and ejects electrons with maximum energy of 4.2 X 10-19 J. If the frequency of radiation is changed to 5 X 1014 Hz, the maximum energy of ejected electrons becomes 0.9 X10-19J.

The planks’ constant.

(ii) The threshold frequency.

(iii) The work function.

I have twice the age you had when I had the age you have. When you will be as old as I am, the sum of our ages will be 72 years. What are our ages ??

How many number of electron shells are in the Mc-288? Given that its atomic number and neutron number are 115 and 174, respectively.