The speed of an electron having a wavelength of 10⁻¹⁰ m is
The speed of an electron having a wavelength of 10⁻¹⁰ m is Options (a) 6.26x10⁶ m/s (b) 5.25 x10⁶ m/s…
8 years ago
Physics
Einstein’s photoelectric equation is
Einstein's photoelectric equation is Options (a) Emax=hν-φ (b) E=mc² (c) E²=p²c²+m₀²c⁴ (d) E=(1/2)mv² Correct Answer: Emax=hν-φExplanation:No explanation available. Be the…
8 years ago
The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function of the metal is approximately…
8 years ago
The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.
The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon. The ratio of…
8 years ago
If the wavelength of incident light falling on a photosensitive material decreases,
If the wavelength of incident light falling on a photosensitive material decreases, then Options (a) photoelectric current increases (b) stopping…
8 years ago
When a charged oil drop moves upwards in an electric field,
When a charged oil drop moves upwards in an electric field, the electric force acting on the drop is Options…
8 years ago
The lowest frequency of light that will cause the emission of photoelectrons
The lowest frequency of light that will cause the emission of photoelectrons from the surface of a metal (for which…
8 years ago
The maximum kinetic energy of the photoelectrons depends only on
The maximum kinetic energy of the photoelectrons depends only on Options (a) Charge (b) frequency (c) incident angle (d) pressure…
8 years ago
Penetrating power of X-rays does not depend on
Penetrating power of X-rays does not depend on Options (a) potential difference (between anode and cathode) (b) Current in the…
8 years ago
Light of wavelength λᴀ and λᴃ falls on two identical metal plates A and B respectively.
Light of wavelength λᴀ and λʙ falls on two identical metal plates A and B respectively. The maximum kinetic energy…
8 years ago