JEE PHYSICS MCQ: WAVE OPTICS

1 Hard

1 of 1

Application +4 | -1

In a double-slit experiment, green light

(5303\mathop \mathrm{A}\limits^\mathrm{o} )\mathrm{ }

falls on a double slit having a separation of

19.44\mu m

and a width of

4.05\mu m

. The number of bright fringes between the first and the second diffraction minima is

View answer and explanation

Correct option: A

Option A (5) is correct because the number of bright fringes between the first and second diffraction minima is approximately the ratio of the slit separation to the slit width.

More Questions from WAVE OPTICS

Practice All Chapter MCQs →

Which of the following properties of electromagnetic waves does not support particle nature of radiation (electromagnetic wave)? Spherical wavefronts, emanating from a point source, strike a plane reflecting surface. What will happen to these wave fronts, immediately after reflection? An astronomical telescope is able to resolve two stars at an angular separation of

10^{-3}

degree. If wavelength of light used is

500 {~nm}

, then the diameter of the objective of the telescope is An interference pattern was made by using red light. If the red light changes with blue light, the fringes will become H-polaroid is prepared by Specific rotation of sugar solution is

0.01\;SI

units.

200\;kg{m^{ - 3}}

of impure sugar solution is taken in a polarimeter tube of length

0.25\;m

and an optical rotation of

0.4\;rad

is observed. The percentage of purity of sugar is the sample is