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2. structure of atom — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
A photon-sensitive metal is not emitting photoelectron when irradiated. It will do so when threshold is crossed. To cross the threshold we need to increase:
  • A
    Intensity
  • ✓
    Frequency
  • C
    Wavelength
  • D
    none
✓

Answer

Correct option: B.
Frequency
b

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