MHT CET 2024 15th May Evening Shift | Dual Nature of Radiation Question 6 | Physics

The stopping potential as a function of frequency of incident radiation is plotted for two different photoelectric surfaces A and B. The graph shows that the work function of A is

MHT CET 2024 15th May Evening Shift Physics - Dual Nature of Radiation Question 3 English

greater than that of B.

smaller than that of B.

same as that of B.

that no comparison can be made from the graphs.

MHT CET 2024 15th May Morning Shift

MCQ (Single Correct Answer)

-0

Two photons having energies twice and thrice the work function of metal are incident one after another on the metal surface. Then the ratio of maximum velocities of the photoelectrons emitted in the two cases is respectively

$\sqrt{3}: 3$

$\sqrt{2}: \sqrt{3}$

$1: \sqrt{2}$

$\sqrt{3}: 1$

MHT CET 2024 15th May Morning Shift

MCQ (Single Correct Answer)

-0

Electrons are accelerated through a potential difference of 16 kV . If the potential difference is increased to 64 kV , then de-Broglie wavelength associated with electron will

remain same.

becomes half.

becomes four time.

becomes quarter.

MHT CET 2024 11th May Evening Shift

MCQ (Single Correct Answer)

-0

In case of photoelectric effect, the graph of measured stopping potential $\left(\mathrm{V}_0\right)$ against frequency ' $v$ ' of incident light is a straight line. The slope of this line multiplied by the charge of electron (e) gives

the work function of the metal.

the Planck's constant.

the maximum kinetic energy of the ejected electrons.

the threshold frequency for photoejection from the metal.

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