JEE Exam  >  JEE Questions  >  When an inert gas is filled in the place vacu... Start Learning for Free
When an inert gas is filled in the place vacuum in a photo cell, then
  • a)
    Photo-electric current is decreased
  • b)
    Photo-electric current is increased
  • c)
    Photo-electric current is remains the same
  • d)
    Decrease or increase in photo-electric current does not depend upon the gas filled
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
When an inert gas is filled in the place vacuum in a photo cell, thena...
Reasoning:
In a photoelectric cell, when light falls on the cathode, electrons are emitted due to the photoelectric effect. These electrons constitute the photoelectric current. The presence of a vacuum in the photo cell is important because it prevents the electrons from colliding with air molecules, allowing them to travel freely to the anode and generate current.

Effect of filling inert gas:
- When an inert gas is filled in the place of vacuum in a photo cell, the number of collisions between the emitted electrons and gas molecules increases.
- These collisions hinder the movement of electrons towards the anode, thereby decreasing the photoelectric current.
- Therefore, the photo-electric current is decreased when an inert gas is filled in the place of vacuum in a photo cell.

Conclusion:
Thus, the correct answer is option B - Photo-electric current is increased.
Free Test
Community Answer
When an inert gas is filled in the place vacuum in a photo cell, thena...
In the presence of inert gas photoelectrons emitted by cathode ionise the gas by collision and hence the current increases.
Explore Courses for JEE exam
When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer?
Question Description
When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer?.
Solutions for When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice When an inert gas is filled in the place vacuum in a photo cell, thena)Photo-electric current is decreasedb)Photo-electric current is increasedc)Photo-electric current is remains the samed)Decrease or increase in photo-electric current does not depend upon the gas filledCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev