COMEDK · Physics · 26. Wave Optics
A beam of light of wavelength \(600 \mathrm{~nm}\) from a source falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe is
- A \(2.4 \mathrm{~cm}\)
- B \(2.4 \mathrm{~mm}\)
- C \(1.2 \mathrm{~mm}\)
- D \(1.2 \mathrm{~cm}\)
Answer & Solution
Correct Answer
(B) \(2.4 \mathrm{~mm}\)
Step-by-step Solution
Detailed explanation
Given \(\lambda=600 \mathrm{~nm}=600 \times 10^{-9} \mathrm{~m}\) \[ D=2 \mathrm{~m}, d=1 \mathrm{~mm}=1 \times 10^{-3} \mathrm{~m} \] The distance of first dark fringe from central bright fringe,…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- The radius of a nucleus as measured by electron scattering is \(4.8 \mathrm{~fm}\). The mass number of nucleus is most likely to beCOMEDK 2024 Easy
- In case of a \(p-n\) junction diode at high value of reverse bias, the current rises sharply. The value of reverse bias is known asCOMEDK 2015 Easy
- The best waves for emission of electrons from a surface areCOMEDK 2015 Easy
- The equation of a progressive wave can be given by \(y=15 \sin (660 \pi t-0.02 \pi x) \mathrm{cm}\). The frequency of the wave isCOMEDK 2020 Easy
- The direction of the force on a current carrying conductor held perpendicular to an uniform magnetic field is given byCOMEDK 2012 Easy
- According to Pascal's law, pressure in a fluid at rest is the same at all points, ifCOMEDK 2021 Easy
More PYQs from COMEDK
- In the spectrum of visible light produced by a prism dispersion isCOMEDK 2016 Medium
- The reaction of the floor on an object placed on the floor of an elevator is maximum when elevatorCOMEDK 2012 Easy
- \(P\) is a point on the line segment joining the points \((3,2,-1)\) and \((6,2,-2)\). If \(x\) coordinate of \(\mathrm{P}\) is 5, then its \(y\) co-ordinate isCOMEDK 2024 Easy
- Let \(\vec{p}\) and \(\vec{q}\) be the position vectors of P and Q with respect to the origin. If points R and S divide PQ internally and externally in the ratio 2:3 respectively, then \(\overrightarrow{OR}\) and \(\overrightarrow{OS}\) are perpendicular whenCOMEDK 2026 Medium
- The statement \(P(n): ' 1 \times 1 !+2 \times 2 !+3 \times 3\) !
\(+\ldots+n \times n !=(n+1) !-1\) isCOMEDK 2017 Medium - Identify the correct IUPAC name of the following compound.
\(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CN}\)COMEDK 2015 Easy