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

$Q$ value for neutron decay is:
If $N_A$ is number density of acceptor atoms added and $N_D$ is number density of donor atoms added to a semiconductor, $n_e$ and $n_h$ are the number density of electrons and holes in it, then
In communication with help of antenna if height is double then the range covered which was initially $r$ would become
If a bar magnet of magnetic moment M is freely suspended in a uniform magnetic field of strength B, the work done in rotating the magnet through an angle θ is
A wire bent in the shape of a regular $n$-polygonal loop carries a steady current $I$. Let $l$ be the perpendicular distance of a given segment and $R$ be the distance of a vertex both from the centre of the loop. The magnitude of the magnetic field at the centre of the loop is given by
An $npn$ transistor operates as a common emitter amplifier with a power gain of $10^{6} .$ The input circuit resistance is $100\, \Omega$ and the output load resistance is $10\, K \Omega$. The common emitter current gain ' $\beta$ ' will be............. (Round off to the Nearest Integer)
A 25 watt, 220 volt bulb and a 100 watt, 220 volt bulb are connected in series across a 220 volt lines. Which electric bulb will glow more brightly
In the circuit shown below, the key $K$ is closed at $t = 0$. The current through the battery is
A proton of mass $1.67\times 10^{-27}$ kg  and charge $1.6 \times 10^{-19}$C is projected with a speed of $ 2\times 10^6$ C  m/s at an angle of 60° to the X - axis. If a uniform magnetic field of 0.104 Tesla is applied along Y - axis, the path of proton is
The wavelength of most energetic $X-$ rays emitted when a metal target is bombarded by $40KeV$ electrons, is approximately.......$\mathop A\limits^o $

($h = 6.62 \times {10^{ - 34}} J-sec; 1 eV = 1.6 \times {10^{ - 19}}J; c = 3 \times {10^8}\,m/s)$