MCQ
The interference of light was first demonstrated experimentally by:
  • A
    Sir Isaac Newton
  • B
    Michelson
  • C
    Fraunhoffer
  • Thomas Young

Answer

Correct option: D.
Thomas Young

Thomas Young demonstrated the phenomenon of interference in water waves.
In $1801$, he presented a famous paper to the Royal Society entitled "On the Theory of Light and Colours" which described various interference phenomena, and in $1803$ he performed his famous double$-$slit experiment.

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

Similar questions

Two identical bar magnets with a length $10 \,cm $ and weight $50 \,gm$-weight are arranged freely with their like poles facing in a inverted vertical glass tube. The upper magnet hangs in the air above the lower one so that the distance between the nearest pole of the magnet is $3\,mm.$ Pole strength of the poles of each magnet will be.......$ amp × m$
A charged particle moves through a magnetic field perpendicular to its direction. Then:
Radioactive samples are stored in lead boxes because it is:
A parallel plate capacitor is filled with $3$ dielectric materials of same thickness, as shown in the sketch. The dielectric constants are such that $k_3 > k_2 > k_1$. Let the magnitudes of the electric field in and potential drops across each dielectric be $E_3$, $E_2$,$ E_1$, $\Delta V_3$, $\Delta V_2$ and $\Delta V_1$, respectively. Which one of the following statement is true ?
A magnet of magnetic moment $50\,\hat i\,A{\rm{ - }}{m^2}$ is placed along the $x-$ axis in a magnetic field $\overrightarrow B = (0.5\,\hat i + 3.0\hat j)\,T.$ The torque acting on the magnet is
The magnifying power of a telescope is $9$ . When it is adjusted for parallel rays, the distance between the objective and eyepiece is $20\ cm$ . The focal length of lenses are
Hubble showed that the universe as a whole is expanding and the distant stars are receding from us. The spectral line from a star, when compared with the corresponding line from an source will then show
Two positive point charges of 12 μC and 8 μC are 10cm apart. The work done in bringing them 4 cm closer is
$A$ bi-concave glass lens having refractive index $1.5$ has both surfaces of same radius of curvature $R$. On immersion in a medium of refractive index $1.75$, it will behave as a
Two identical conducting wires $AOB$ and $COD$ are placed at right angles to each other. The wire $AOB$ carries an electric current  $I_1$ and $COD$ carries a current $I_2$ . The magnetic field on a point lying at a distance $d$ from $O$, in a direction perpendicular to the plane of the wires $AOB$ and $COD$, will be given by