COMEDK · Physics · 26. Wave Optics
The width of the fringes obtained in the Young's double slit experiment is \(2.6 \mathrm{~mm}\) when light of wave length \(6000^{\circ} \mathrm{A}\) is used. If the whole apparatus is immersed in a liquid of refractive index 1.3 the new fringe width will be :
- A 2.6 mm
- B 2 mm
- C 5.2 mm
- D 4 mm
Answer & Solution
Correct Answer
(B) 2 mm
Step-by-step Solution
Detailed explanation
The fringe width \(\beta\) in Young's double slit experiment is given by the formula \(\beta = \dfrac{\lambda D}{d}\), where \(\lambda\) is the wavelength of light, \(D\) is the distance between the slits and the screen, and \(d\) is the distance between the slits. When the…
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
- With what velocity should an observer approach a stationary sound source, so that the apparent frequency of sound should appear double the actual frequency?COMEDK 2023 Medium
- When metal of work function 1.4eV is exposed to a radiation, the maximum kinetic energy of the electron emitted is 0.4eV. The stopping potential required is:COMEDK 2026 Easy
- A gas is taken through the cycle \(A \rightarrow B \rightarrow C \rightarrow A\), as shown in figure. What is the net work done by the gas?
COMEDK 2023 Medium - A wire of length \(2 \mathrm{~m}\) is made from \(10 \mathrm{~cm}^{3}\) of copper. A force \(F\) is applied so that its length increases by \(2 \mathrm{~mm}\). Another wire of length \(8 \mathrm{~m}\) is made from the same volume of copper. If the force \(F\) is applied to it, its length will increase byCOMEDK 2014 Medium
- A spring of force constant \(k\) is cut into lengths of ratio \(1 : 3 : 4\). They are connected in series and the new force constant is \(k'\). Then they are connected in parallel and force constant is \(k''\). Then \(k' : k''\) isCOMEDK 2023 Medium
- A beam of parallel rays is brought to a focus by a plano-convex lens. A thin concave lens of the same focal length is joined to the first lens. The effect of this isCOMEDK 2019 Medium
More PYQs from COMEDK
- The value of \([a-b \quad b-c \quad c-a]\), where \(|a|=1\), \(|\mathrm{b}|=5|\mathrm{c}|=3\), isCOMEDK 2017 Medium
- Which type of ligand is EDTA?COMEDK 2021 Easy
- The induction coil works on the principle ofCOMEDK 2017 Easy
- A ray of light travelling through a medium of refractive index \(\dfrac{5}{4}\) is incident on a glass of refractive index \(\dfrac{3}{2}\). Find the angle of refraction in the glass, if the angle of incidence at the given medium - glass interface is \(30^{\circ}\).COMEDK 2024 Easy
- The derivative of \(a^{\sec x}\) w.r.t. \(a^{\tan x}(a>0)\) isCOMEDK 2016 Medium
- A stone is thrown vertically upwards and the height \(x f\) t. reached by the stone in \(t\) sec is given by \(x=80 t-16 t^{2}\). The stone reaches the maximum height inCOMEDK 2019 Medium