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MHT CET202310 May 2023Morning ShiftPhysicsDual Nature of MatterActual

Maximum kinetic energy of photon is ' E ' when wavelength of incident radiation is ' '. If wavelength of incident radiations is reduced to 3 then energy of photon becomes four times. Then work function of the metal is

Options

  1. A3 hc
  2. Bhc 3
  3. Chc
  4. Dhc 2

Correct answer

B. hc 3

Step-by-step solution

E = hc - ₀ .... (i) Given: = 3 and E =4 E aligned 4 E & = hc / 3 - ₀ .... (ii) & = 3 hc - ₀ 4 ( hc - ₀ ) & = 3 hc - ₀ ....(From (i)) 4 h c -4 ₀ & = 3 hc - ₀ h c & =3 ₀ ₀ & = hc 3 aligned

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