Q: Einstein’s photoelectric equation states that E_{k} = h v - W , In this equation E_k refers to :

E_{k}=h\nu -\phi (here \phi=W )here E_{k} refers to the maximum kinetic energy of emitted electrons.

Q: Threshold wavelength depends on

\phi =\dfrac{hc}{\lambda } h and c are constants. \therefore \phi depends only on \lambda .

Q: The Einstein’s photo-electric equation is based upon the conservation of

Einsteins photoelectric equations states that E_{k}=h\nu - \phi where, E_{k} is maximum kinetic energy of emitted photoelectronsh is plank's constant. \nu is frequency of incident light \phi is work function of metal.So, it is clearly based upon energy conservation.

Question 1

The momentum of a proton is p. The corresponding wavelength is

Accepted Answer

\lambda =\dfrac{h}{mv}     =\dfrac{h}{p}

Question 2

The work function of a metal

Accepted Answer

Correct Answer: Option (A)The explanation for the correct answer:Work function is defined as the minimum amount of energy required to remove an electron to infinity from the surface of a given solid or metal. Different metals have different work functions due to their difference of strength of bond with electrons.Hence, the work function of a metal is different for different metals.

Question 3

Einstein’s photoelectric equation states that E_{k} = h v - W , In this equation  E_k  refers to :

Accepted Answer

E_{k}=h
u  -\phi   (here  \phi=W )here  E_{k}  refers to the maximum kinetic energy of emitted electrons.

Question 4

The process of photoelectric emission depends on

Accepted Answer

Photo electric effect happens only if energy of electrons is greater than threshold energy, i.e the  work function.Work function depends on material. 	herefore   photo electric emission on depends. on nature of surface.

Question 5

The best suitable metal for photoelectric effect is:

Accepted Answer

Photoelectric effect occurs easily if the metal has low ionization potential  cesium, the alkali metal has low ionization potential, hence it is best suitable for photoelectric effect.

Question 6

The wavelength of matter waves does not depend on

Accepted Answer

Wavelength of matter, \lambda =\dfrac{h}{mv}

Question 7

De-Broglie wavelength depends on

Accepted Answer

\lambda =\dfrac{h}{mv} So  \lambda   depends on mass of the particle.

Question 8

Work function is the energy required

Accepted Answer

Work function refers to the minimum frequency of photons required to eject an electron from its surface.  \phi =h{ \upsilon  }_{ o }

Question 9

Threshold wavelength depends on

Accepted Answer

\phi =\dfrac{hc}{\lambda } h  and  c  are constants. 	herefore \phi  depends only on  \lambda  .

Question 10

The Einstein’s photo-electric equation is based upon the conservation of

Accepted Answer

Einsteins photoelectric equations states that E_{k}=h
u - \phi  where,  E_{k}  is maximum kinetic energy of emitted photoelectronsh is plank's constant. 
u   is frequency of incident light \phi   is work function of metal.So, it is clearly based upon energy conservation.

Dual Nature Of Radiation And Matter

Physics
135 Views

The momentum of a proton is p. The corresponding wavelength is

The work function of a metal

Einstein’s photoelectric equation states that
$E_{k} = h v - W$ , In this equation $E_{k}$ refers to :

The process of photoelectric emission depends on

The best suitable metal for photoelectric effect is:

The wavelength of matter waves does not depend on

De-Broglie wavelength depends on

Work function is the energy required

Threshold wavelength depends on

The Einstein’s photo-electric equation is based upon the conservation of

Dual Nature Of Radiation And Matter

Physics 135 Views

The momentum of a proton is p. The corresponding wavelength is

The work function of a metal

Einstein’s photoelectric equation states that Ek​=hv−W, In this equation Ek​ refers to :

The process of photoelectric emission depends on

The best suitable metal for photoelectric effect is:

The wavelength of matter waves does not depend on

De-Broglie wavelength depends on

Work function is the energy required

Threshold wavelength depends on

The Einstein’s photo-electric equation is based upon the conservation of

Physics
135 Views

Einstein’s photoelectric equation states that
$E_{k} = h v - W$ , In this equation $E_{k}$ refers to :