Home
Class 12
CHEMISTRY
The work function for Ag metal is 7 .5 x...

The work function for Ag metal is `7 .5 xx 10^(-19) J`. As metal is being exposed to the light of frequency 1220 `Å` . Which is `//` are correct statements?

A

Threshold frequency of metal is `1/135 xx10^(15)s^(-1)`

B

Threshold frequency of metal is `8. 33 xx 10^(15) s^(-1)`

C

Stopping potential is 5.46 volt

D

If light of wavelength 3600 `Å` is used then photo -electric effect take place

Text Solution

Verified by Experts

The correct Answer is:
1,3
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION -D) Linked Comprehension Type Questions)|9 Videos

  • STRUCTURE OF ATOM

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION -E) Assertion - Reason Type Questions|10 Videos

  • STRUCTURE OF ATOM

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION -B) Objective Type Questions (One option is correct)|38 Videos

  • STRUCTURE OF ATOM

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION -D) Assertion-Reason Type Questions|15 Videos

  • SURFACE CHEMISTRY

    AAKASH INSTITUTE|Exercise Assignment Section - C (Assertion - Reason type questions)|10 Videos

Similar Questions

Explore conceptually related problems

The work function of a metal is 1.6 xx 10^(-19) J . When the metal surface is illuminated by the light of wavelength 6400 Å , then the maximum kinetic energy of emitted photo - electrons will be (Planck's constant h = 6.4 xx 10^(-34) Js )

If the work function for a certain metal is 3.2 xx 10^(-19) joule and it is illuminated with light of frequency 8 xx 10^(14) Hz . The maximum kinetic energy of the photo-electrons would be (h = 6.63 xx 10^(-34) Js)

A metal surface having a work function phi = 2.2 xx 10^(-19) J , is illuminated by the light of wavelengh 1320Å . What is the maximum kinetic energy ( in eV ) of the emitted photoelectron ? [Take h = 6.6 xx 10^(-34) Js ]

The work function of a metal is 3.3 xx10^(-19)J . The maximum wavelength of th e photons required to eject photoelectrons from the metal is (Take h=6.6xx10^(-34)Js )

The work function of sodium metal is 4.41xx10^(-19)J . If photons of wavelength 300 nm are incident on the metal, the kinetic energy of the ejected electrons will be (h=6.63xx10^(34)Js,c=3xx10^(8) m/s ______ xx10^(-21)

A photon of wavelenght is 4.0 xx 10^(-7) m strikes on a mnetal surfce , the work function of metal being 3. 4xx 10^(-19) J . Select the correct statyements :