Download App

Wave Optics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
MCQ
In Young's double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance $d(d>>b)$ from the slits. Some wavelengths are missing exactly in front of one slit. These wavelengths are
  • A
     $\lambda=\frac{b^2}{d}$
  • B
     $\lambda=\frac{ b ^2}{3 d}$
  • C
     $\lambda=\frac{2 b^2}{3 d}$
  • ✓
     $a, b$
✓

Answer

Correct option: D.
 $a, b$
$a, b$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Wave Optics→Wave Optics — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

For the given figures, choose the correct options:
→
Hydrogen $(_1H^1),$ Deuterium $(_1H^2)$,singly ionised Helium $(_2He^4)^+$ and doubly ionised lithium ${\left( {{}_3^6Li} \right)^{ + + }}$, all have one electron around the nucleus. Consider an electron transition from $n = 2$ to $n = 1$. If the wavelengths of emitted radiation are $λ_1,λ_2,λ_3$ and $λ_4$ respectively then approximately which one of the following is correct?
→
Sodium light of wavelengths $650\, nm$ and $655\, nm$ is used to study diffraction at a single slit of aperture $0.5\, mm$. The distance between the slit and the screen is $2.0 \,m$. The separation between the positions of the first maxima of diffraction pattern obtained in the two cases is $\times 10^{-5} \,m$
→
The effective resistance between $A$ and $B$, if resistance of each resistor is $R$, will be
→
An infinite number of charges, each of charge $1 \,\mu C$ are placed on the $x$-axis with co-ordinates $x = 1, 2,4, 8, ....\infty$. If a charge of $1\, C$ is kept at the origin, then what is the net force acting on $1\, C$ charge....$N$
→
Which among the following is true
→
A coil of Cu wire (radius $-r$, self inductance $-L$) is bent in two concentric turns each having radius The self inductance now
→
For intensity I of a light of wavelength 5000Å the photoelectron saturation current is 0.40 μA and stopping potential is 1.36 V, the work function of metal is
→
Atomic weight of boron is 10.81 and it has two isotopes $5^{\mathrm{B}^{10}}$ and $5^{\mathrm{B}^{11}}$. Then ratio of $5^{\mathrm{B}^{10}}: 5^{\mathrm{B}^{11}}$ in nature would be
→
In the given figure, the magnet is moved towards the coil with speed $'v'$ and induced  $emf$ is $'e'$. If magnet and coil recede away from one another each moving with speed $'v'$, the induced $emf$ in the coil will be
→