JEE Mains · Physics · STD 12 - 10. Wave optics
The width of one of the two slits in a Young's double slit experiment is \(4\) times that of the other slit. The ratio of the maximum of the minimum intensity in the interference pattern is _______.
- A \(9: 1\)
- B \(16: 1\)
- C \(1: 1\)
- D \(4: 1\)
Answer & Solution
Correct Answer
(A) \(9: 1\)
Step-by-step Solution
Detailed explanation
Since, Intensity \(\propto\) width of slit \((\omega)\) \(\text { so, } I_1=I, I_2=4 \mathrm{I}\) \(I_{\min }=\left(\sqrt{I_1}-\sqrt{I_2}\right)^2=I\) \(I_{\max }=\left(\sqrt{I_1}+\sqrt{I_2}\right)^2=9 \mathrm{I}\)…
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
- Two sitar strings, \(A\) and \(B,\) playing the note \('Dha'\) are slightly out of tune and produce beats and frequency \(5\,Hz.\) The tension of the string \(B\) is slightly increased and the beat frequency is found to decrease by \(3\,Hz\) . If the frequency of \(A\) is \(425\,Hz,\) the original frequency of \(B\) is ... \(Hz\)JEE Mains 2018 Easy
- The equation of stationary wave is \(\mathrm{y}=2 \mathrm{a} \sin \left(\frac{2 \pi \mathrm{nt}}{\lambda}\right) \cos \left(\frac{2 \pi \mathrm{x}}{\lambda}\right)\) Which of the following is NOT correct?JEE Mains 2024 Hard
- A square loop of area \(25\,cm ^2\) has a resistance of \(10\,\Omega\). The loop is placed in uniform magnetic field of magnitude \(40.0 T\). The plane of loop is perpendicular to the magnetic field. The work done in pulling the loop out of the magnetic field slowly and uniformly in \(1.0 sec\), will be \(..........\times 10^{-3}\)JEE Mains 2023 Hard
- A circular conducting coil of radius \(1\, {m}\) is being heated by the change of magnetic field \(\vec {B}\) passing perpendicular to the plane in which the coil is laid. The resistance of the coil is \(2\, \mu\, \Omega\). The magnetic field is slowly switched off such that its magnitude changes in time as \(B=\frac{4}{\pi} \times 10^{-3}\, {T}\left(1-\frac{{t}}{100}\right)\) The energy dissipated by the coil before the magnetic field is switched off completely is \(E=.....\,{m} J.\)JEE Mains 2021 Medium
- A monochromatic neon lamp with wavelength of \(670.5\, {nm}\) illuminates a photo-sensitive material which has a stopping voltage of \(0.48\, {V}\). What will be the stopping voltage if the source light is changed with another source of wavelength of \(474.6 \,{nm} ?\) (In \({V}\))JEE Mains 2021 Hard
- The election field in a region is given by \(\vec E = (Ax + B)\hat i\) where \(E\) is in \(N\,C^{-1}\) and \(x\) in meters. The values of constants are \(A = 20\, SI\, unit\) and \(B = 10\, SI\, unit\). If the potential at \(x =1\) is \(V_1\) and that at \(x = -5\) is \(V_2\) then \(V_1 -V_2\) is.....\(V\)JEE Mains 2019 Medium
More PYQs from JEE Mains
- The maximum rated power of the LED is \(2\) mW and it is used in the circuit with input voltage of \(5\) V as shown in the figure below. The current through resistance \(R_S\) is \(0.5\) mA. The minimum value of the resistance of \(R_S\), to ensure that the LED is not damaged is _______ k\(\Omega\).
JEE Mains 2026 Hard - The arm \(P Q\) of a rectangular conductor is moving from \(x=0\) to \(x=2 b\) outwards and then inwards from \(x=2 b\) to \(x=0\) as shown in the figure. A uniform magnetic field perpendicular to the plane is acting from \(x=0\) to \(x=b\). Identify the graph showing the variation of different quantities with distance.
JEE Mains 2021 Hard - Let \(S=\{1,2,3,4,5,6,7,8,9\}\). Let x be the number of 9-digit numbers formed using the digits of the set S such that only one digit is repeated and it is repeated exactly twice. Let y be the number of 9-digit numbers formed using the digits of the set S such that only two digits are repeated and each of these is repeated exactly twice. Then,JEE Mains 2026 Medium
- If \(n\) be odd or even, then the sum of \(n\) terms of the series \(1 - 2 + \) \(3 - \)\(4 + 5 - 6 + ......\) will beJEE Mains 2022 Easy
- The area (in \(sq.\, units\)) of the region bounded by the curves \(x^{2}+2 y-1=0, y^{2}+4 x-4=0\) and \(y^{2}-4 x-\) \(4=0\), in the upper half plane is \(....\)JEE Mains 2021 Hard
- The number of solutions, of the equation \(\mathrm{e}^{\sin x}-2 e^{-\sin x}=2\) isJEE Mains 2024 Hard