मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान इयत्ता १२

If a light of wavelength 330 nm is incident on a metal with work function 3.55 eV, the electrons are emitted. Then the wavelength of the wave associated with the emitted electron is - Physics

Advertisements
Advertisements

प्रश्न

If a light of wavelength 330 nm is incident on a metal with work function 3.55 eV, the electrons are emitted. Then the wavelength of the wave associated with the emitted electron is (Take h = 6.6 × 10–34 Js)

पर्याय

  • < 2.75 × 10–9 m

  • ≥ 2.75 × 10–9 m

  • ≤ 2.75 × 10–12 m

  • < 2.5 × 10–10 m

MCQ

उत्तर

< 2.75 × 10–9 m

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Dual Nature of Radiation and Matter - Evaluation [पृष्ठ १३५]

APPEARS IN

सामाचीर कलवी Physics - Volume 1 and 2 [English] Class 12 TN Board
पाठ 8 Dual Nature of Radiation and Matter
Evaluation | Q I. 5. | पृष्ठ १३५

संबंधित प्रश्‍न

Why should gases be insulators at ordinary pressures and start conducting at very low pressures?


How does one explain the emission of electrons from a photosensitive surface with the help of Einstein's photoelectric equation?


A diode value is connected to a battery and a load resistance. The filament is heated, so that a constant current is obtained in the circuit. As the cathode continuously emits electrons, does it become more and more positively charged?


The cathode of a diode valve is replaced by another cathode of double the surface area. Keeping the voltage and temperature conditions the same, will the place current decrease, increase or remain the same?


The wave associated with a moving particle of mass 3 × 10–6 g has the same wavelength as an electron moving with a velocity 6 × 106 ms–1. The velocity of the particle is


A 150 W lamp emits light of the mean wavelength of 5500 Å. If the efficiency is 12%, find out the number of photons emitted by the lamp in one second.


In which case is electron emission from a metal not known?


Consider Figure for photoemission.

How would you reconcile with momentum conservation? Note light (photons) have momentum in a different direction than the emitted electrons.


Give an example each of a metal from which photoelectric emission takes place when irradiated by

  1. UV light
  2. visible light.

The work function of a metal is 2.31 eV. Photoelectric emission occurs when the light of frequency 6.4 × 1014 Hz is incident on the metal surface. Calculate

  1. the energy of the incident radiation,
  2. the maximum kinetic energy of the emitted electron and
  3. the stopping potential of the surface.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×