Question

In the photoelectron emission, the energy of the emitted electron is

A. greater than the incident photon
B. same as that of the incident photon
C. smaller than the incident photon  
D. proportional to the intensity of incident photon
Answer :   smaller than the incident photon
Solution :
In the photoelectric effect, the energy of the emitted electron is smaller than that of the incident photon because some energy of photon is used to eject the electron and remaining energy is used to increase the kinetic energy of ejected electron.

Releted MCQ Question on
Physical Chemistry >> Atomic Structure

Releted Question 1

The number of neutrons in dipositive zinc ion with mass number 70 is

A. 34
B. 36
C. 38
D. 40
View Answer
Releted Question 2

Rutherford’s experiment on scattering of $$a$$ -particles showed for the first time that the atom has

A. electrons
B. protons
C. nucleus
D. neutrons
View Answer
Releted Question 3

Any $$p-$$orbital can accommodate upto

A. four electrons
B. six electrons
C. two electrons with parallel spins
D. two electrons with opposite spins
View Answer
Releted Question 4

The principal quantum number of an atom is related to the

A. size of the orbital
B. spin angular momentum
C. orbital angular momentum
D. orientation of the orbital in space
View Answer

Practice More Releted MCQ Question on
Atomic Structure

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Physical ChemistrySome Basic Concepts in ChemistryStoichiometryStates of Matter Solid, Liquid and GasAtomic StructureChemical ThermodynamicsSolutionsSolid StateSurface ChemistryChemical EquilibriumIonic EquilibriumChemical KineticsRedox ReactionElectrochemistryNuclear Chemistry
Inorganic ChemistryChemical Bonding and Molecular StructureOres and MetallurgyClassification of Elements and Periodicity in PropertiesHydrogenS - Block ElementsP - Block ElementsD and F Block ElementsCo - ordination CompoundsQualitative AnalysisPreparation and Properties of CompoundsEnvironmental Chemistry
Organic ChemistryGeneral Organic ChemistryIsomerismPurification and Characterisation of Organic CompoundsHydrocarbons (Alkane, Alkene and Alkyne)Aromatic hydrocarbonElectrophilic Aromatic Substitution (Haloalkanes and Haloarenes)Alkyl and Aryl HalideReactions on BenzeneAlcohol, Phenol and EtherAldehyde and KetoneCarboxylic AcidOrganic Compounds Containing NitrogenName ReactionsPolymersBiomoleculesChemistry in Everyday LifePractical Organic Chemistry