JEE Exam  >  JEE Questions  >  A single-slit of width a is illuminated by vi... Start Learning for Free
A single-slit of width 'a' is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?
  • a)
    The width of the diffraction pattern is y/3
  • b)
    The width of the diffraction pattern is 3y.
  • c)
    The pattern vanishes and the width is zero.
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A single-slit of width a is illuminated by violet light of wavelength ...
Explanation:

Single-slit Diffraction:
- When light passes through a single slit of width 'a', it diffracts and forms a diffraction pattern on a screen.
- The width of the diffraction pattern is given by the formula: y = λL/a, where λ is the wavelength of light, L is the distance from the slit to the screen, and a is the width of the slit.

Given:
- Violet light of wavelength 400 nm (λ = 400 nm = 4 x 10^-7 m) illuminates the slit, and the width of the diffraction pattern is y.
- Half of the slit width is covered and illuminated by yellow light of wavelength 600 nm (λ = 600 nm = 6 x 10^-7 m).

Calculation:
- Initially, with violet light: y = 4 x 10^-7 x L/a
- When half of the slit is covered, the effective width of the slit becomes a/2.
- With yellow light: y' = 6 x 10^-7 x L/(a/2) = 6 x 10^-7 x 2L/a = 2(4 x 10^-7 x L/a) = 2y

Conclusion:
- The width of the diffraction pattern with yellow light is twice that of the diffraction pattern with violet light.
- Therefore, the correct statement is option B: The width of the diffraction pattern is 3y.
Free Test
Community Answer
A single-slit of width a is illuminated by violet light of wavelength ...
Width of diffraction pattern, 

The width of the diffraction pattern is y/3
Explore Courses for JEE exam
A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect answer is option 'B'. Can you explain this answer?
Question Description
A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect 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 A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect 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 A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect 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 A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A single-slit of width a is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, then which of the following is correct about the width of the diffraction pattern?a)The width of the diffraction pattern is y/3b)The width of the diffraction pattern is 3y.c)The pattern vanishes and the width is zero.d)None of theseCorrect 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