TG EAPCET 2025 (Online) 2nd May Evening Shift | Dual Nature of Radiation Question 5 | Physics

When a photosensitive material is illuminated by photons of energy 3.1 eV , the stopping potential of the photoelectrons is 1.7 V . When the same photosensitive material is illuminated by photons of energy 2.5 eV , the stopping potential of the photoelectrons is

1.8 V

1.4 V

1.1 V

1.3 V

TG EAPCET 2025 (Online) 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

Photons of energy 4.5 eV are incident on a photosensitive material of work function 3 eV . The de-Broglie wavelength associated with the photoelectrons emitted with maximum kinetic energy is nearly

$10 \mathop {\rm{A}}\limits^{\rm{o}}$

$5 \mathop {\rm{A}}\limits^{\rm{o}}$

$20 \mathop {\rm{A}}\limits^{\rm{o}}$

$15 \mathop {\rm{A}}\limits^{\rm{o}}$

TG EAPCET 2024 (Online) 11th May Morning Shift

MCQ (Single Correct Answer)

-0

The work functions of two photosensitive metal surfaces $A$ and $B$ are in the ratio $2: 3$. If $x$ and $y$ are the slopes of the graphs drawn between the stopping potential and frequency of incident light for the surfaces $A$ and $B$ respectively, then $x: y=$

$1: 1$

$2: 3$

$4: 9$

$2: 5$

TG EAPCET 2024 (Online) 10th May Evening Shift

MCQ (Single Correct Answer)

-0

Wave picture of light has failed to explain

photoelectric effect

interference of light

diffraction of light

polarisation of light

PREVIOUS NEXT

TS EAMCET Subjects

Browse all chapters by subject