MCQ
The mean intensity in the interference pattern obtained from two coherent sources of equal intensity $I _0$ will be :
- A$I _0$
- B$2 I _0$
- ✓$4 I _0$
- D$0$
✓
Answer
Correct option: C.
$4 I _0$
(C) - $4 I _0$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
. A surface that has the same electrostatic potential at every point on it is known as $......$
→The electronic transition from $n = 2$ to $n = 1$ will produce shortest wavelength in:
→Two long, straight wires carry equal currents in opposite directions as shown in figure. The separation between the wires is $5.0 \mathrm{~cm}$. The magnitude of the magnetic field at a point $P$ midway between the wires is __________$\mu \mathrm{T}$ (Given : $\mu_0=4 \pi \times 10^{-7} \mathrm{TmA}^{-1}$ )
→At which excited state of $Be ^{3+}$ radius of $e ^{-}$ will be same as $H$ atoms and electron in ground state.
→How many calories of heat will be produced approximately in a $210\, watt$ electric bulb in $5$ minutes .............. $cal $
→Compton effect is associated with
$\frac{{2.5}}{\pi }\mu F$ capacitor and $3000-ohm$ resistance are joined in series to an $ac$ source of $200\, volt$ and $50se{c^{ - 1}}$ frequency. The power factor of the circuit and the power dissipated in it will respectively
→If the potential difference applied to the tube is doubled and the separation between the filament and the target is also doubled, the cutoff wavelength:
The dispersive powers of glasses of lenses used in an achromatic pair are in the ratio $5 : 3.$ If the focal length of the concave lens is $15 cm$, then the nature and focal length of the other lens would be
→Force between two unit pole strength placed at a distance of one metre is