Student Login

Home›Chapters›Dual Nature of Radiation and Matter PYQs›Photoelectric Experiment: Intensity, Stopping Potential & Graphs›Question 58

JEE Main 2020 (4 Sep, Shift 2) · Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from JEE Main 2020 (4 Sep, Shift 2)

Q58JEE Main 2020 · 4 SEP · SHIFT 2Medium

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

In a photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased:

Show answer and solution

Answer: (b)

$eV = \frac{hc}{\lambda} - \phi$ : slope $hc/e$ and intercept depend only on constants and the metal.
Intensity changes only the number of photoelectrons (current), not $V$ .
So the answer is (b) the graph does not change.

Report a mistake

More questions on Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Given figure shows few data points in a photoelectric effect experiment for a certain…JEE Main 2020 (4 Sep, Shift 1)
A beam of electromagnetic radiation of intensity 6.4 × 10–5 W/cm2 is comprised of…JEE Main 2020 (7 Jan, Shift 1)
A metal surface is illuminated by light of given intensity and frequency to cause…MHT CET 2019 (2 May, Shift 2)
The stopping potential of the photoelectrons, from a photo cell isMHT CET 2019 (3 May, Shift 1)
The stopping potential V0 (in volt) as a function of frequency ( v) for a sodium emitter…JEE Main 2019 (12 Apr, Shift 1)
A metal plate of area 1 × 10–4 m2 is illuminated by a radiation of intensity 16 mW/m2…JEE Main 2019 (10 Jan, Shift 2)
A beam of light has two wavelengths 4972 and 6216 with a total intensity of 3.6 × 10 - 3…JEE Main 2014 (12 Apr, Shift 1)
A source of light is placed at a distance of 50 cm from a photo cell and the stopping…NEET 2013