In the double-slit experiment, if the distance of the two slits decreases, the bright fringes will all become closer.

One prefers to choose materials with strong absorption to fabricate a dielectric mirror so that the transmitted light can be minimized.

An unpolarized beam gets 50% reflection at an air-glass interface if the incident angle of the beam is at the Brewster angle.

The intensity of a spherical wave is reduced by two times when measured at 4 m away from the light source compared to that at 2 m.

An evanescent wave exists in the denser medium when total internal reflection occurs.

An unpolarized beam will be completely blocked by a polarizer.

When does a material undergo plastic deformation?

“In the context of Strength of Materials, which of the following best describes ‘normal stress’?”

In which type of material would you expect Poisson’s effect to be most pronounced?

What is the purpose of an ‘end return’ in a fillet weld?