MCQ
Which figure shows the correct variation of applied potential difference $(V)$ with photoelectric current $(I)$ at two different intensities of light ( $\mathrm{I}_1<$ $\mathrm{I}_2$ ) of same wavelengths :
- A
- B
- ✓
- D
✓
Answer
Correct option: C.
c
Given lights are of same wavelength.
Given lights are of same wavelength.
Hence stopping potential will remain same.
Since $I_2>I_1$, hence saturation current corresponding to $\mathrm{I}_2$ will be greater than that corresponding to $\mathrm{I}_1$.
Hence option $(3)$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which one of the following is a safe place during lightning?
Two coherent sources have intensity in the ratio of $\frac{{100}}{1}$. Ratio of (intensity) max/(intensity) min is
→A finite ladder is constructed by connecting several sections of 2μF,4 μF capacitor combinations as shown in the figure. It is terminated by a capacitor of capacitance C. What value should be chosen for C such that the equivalent capacitance of the ladder between the points A and B becomes independent of the number of sections in between
Two straight horizontal parallel wires are carrying the same current in the same direction, d is the distance between the wires. You are provided with a small freely suspended magnetic needle. At which of the following positions will the orientation of the needle be independent of the magnitude of the current in the wires
The wavelength of yellow line of sodium is $5896 \mathring A$ . Its wave number will be
→Two galvanometers A and B require 3mA and 5mA respectively to produce the same deflection of 10 divisions. Then
The camera lens has an aperture of $f$ and the exposure time is $(1/60)\,s$. What will be the new exposure time if the aperture become $1.4\,f$ ?
→Electric potential is given by
→$V = 6x - 8x{y^2} - 8y + 6yz - 4{z^2}$
Then electric force acting on $2\,C$ point charge placed on origin will be......$N$
In potentiometer experiment when $K_1$ is closed balance length is $100\,cm$. Then what will be balancing length when $K_2$ is closed ................ $\mathrm{cm}$
→Colours of thin films result from or On a rainy day, a small oil film on water show brilliant colours. This is due to