Home
Class 12
PHYSICS
Work functions of two metals A and B are...

Work functions of two metals A and B are 3.1 eV and 1.9 eV respectively. Light of wavelength `3000 Å` is incident on both the surfaces.

A

no photoemission will take place in case of metal A

B

photoelectrons will be emitted from both the metals

C

maximum kinetic energy of the photoelectron will be higher in metal B

D

threshold wavelength of photoelectric effect in case of metal A will be `4000 Å` approximately

Text Solution

Verified by Experts

The correct Answer is:
B, C, D
Promotional Banner

Topper's Solved these Questions

  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise Entrance Corner (Comprehension type)|8 Videos

  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise Entrance Corner (Integer answer type)|9 Videos

  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise Entrance Corner (Assertion- Reason Type)|10 Videos

  • OPTICAL INSTRUMENTS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|8 Videos

  • QUESTION PAPER OF NEET 2017

    CHHAYA PUBLICATION|Exercise QUESTION PAPERS OF (NEET) (2017)|39 Videos

Similar Questions

Explore conceptually related problems

The photoelectric work function of a metal is 1.2 eV. What will be the stopping potential for a radiation of wavelength 5500 Å incident on its surface?

Work functions of three metals A, B and C are 1.92 eV, 2.0 eV and 5. eV respectively. Which metal will emit photoelectrons when a light of wavelength 4100Å is incident on the metal surfaces?

The work function of a metal surface is 2.0 eV. Light of wavelength 5000 Å is incident on it:

Threshold wavelength for photoelectric emission from a metal surface is 3800Å , Utraviolet light of wave-length 2600Å is incident on the metal surface. Find the work function of the metal and

The work function of silver and sodium are 4.6 eV and 2.3 eV respectively. What is the ratio of slope of stopping potential versus frequency plot for silver to that of sodium?

Threshold wavelength for photoelectric emission from a metal surface is 3800Å , Utraviolet light of wave-length 2600Å is incident on the metal surface. maximum kinetic energy of emitted photoelectron. (h = 6.63 xx 10^(-27) " erg.s")

Two metals A and B have work function 4eV and 10eV respectively. Which metal has higher threshold wavelength?

The work function for cesium is 1.8 eV. A light of wavelength 5000 Å is incident on it. Calculate (i) maximum kinetic energy of emitted electrons, (ii) threshold frequency and threshold wavelength and (iii) maximum velocity of the emitted electrons

The work function for electron emission from a metal is 1.9 eV, and the wavelength of the radiation incident on its surface is 4041 Å . Find out the kinetic energy of the fastest photoelectrons.