Dual Nature Of Radiation And Matter

Physics
382 Views

The photoelectric threshold energy of certain metal is 3 eV. If light of wavelength 3000 is incident on the metal, then :

A
Electrons will be emitted
B
Positrons will be emitted
C
Protons will be emitted
D
Electrons will not be emitted
Easy
View solution>

Moving with the same velocity, one of the following has the longest de Broglie wavelength

A
particle
B
particle
C
proton
D
neutron
Easy
View solution>

A photon of frequency has an energy

A
B
C
D
Easy
View solution>

The wavelength of matter waves does not depend on

A
Momentum
B
Velocity
C
Mass
D
Charge
Easy
View solution>

De-Broglie wavelength depends on

A
Mass of the particle
B
Size of the particle
C
Material of the particle
D
Shape of the particle
Easy
View solution>

Matter waves are:

A
Electromagnetic waves
B
Mechanical waves
C
Either mechanical or electromagnetic waves
D
Neither mechanical nor electromagnetic waves
Easy
View solution>