The phenomenon of diffraction of light was discovered by

The penetration of light into the region of geometrical shadow is called:

In a diffraction pattern produced by a thin wire,what happens to the fringe width when the diameter of the wire is increased?

When the distance of separation between the slit and screen is doubled, the angular separation between fringes in single slit diffraction pattern experiment

Obtain the formulas for the angular width and linear width of the central maximum in a single-slit diffraction experiment.

In a single slit diffraction pattern, the distance between the plane of the slit and the screen is $1.4 \text{ m}$. The width of the slit is $0.66 \text{ mm}$. The second maximum is formed at the distance of $2.8 \text{ mm}$ from the center of the screen. The wavelength of light used is (in $\text{ Å}$)