Dual Nature of Matter and Radiation Archives - Page 9 of 15

When a charged oil drop moves upwards in an electric field, the electric force acting on the drop is Options…

7 years ago

The lowest frequency of light that will cause the emission of photoelectrons from the surface of a metal (for which…

7 years ago

The maximum kinetic energy of the photoelectrons depends only on Options (a) Charge (b) frequency (c) incident angle (d) pressure…

7 years ago

Penetrating power of X-rays does not depend on Options (a) potential difference (between anode and cathode) (b) Current in the…

7 years ago

Light of wavelength λᴀ and λʙ falls on two identical metal plates A and B respectively. The maximum kinetic energy…

7 years ago

When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a…

7 years ago

what is the de-Broglie wavelength of the electron accelerated through a potential difference of 100V? Options (a) 12.27Å (b) 1.227Å…

7 years ago

The most important characteristic of electron in the production of X-rays is Options (a) Revolution of electron around the nucleus…

7 years ago

For photoelectric emission to take place Options (a) Frequency of incident radiations should be less than threshold frequency (b) Wavelength…

7 years ago

Rate of photoelectric emission is proportional to Options (a) Frequency of incident radiations (b) Intensity of incident radiations (c) Square…

7 years ago