Snell's Law MCQ (Multiple Choice Questions) PDF Download

An electromagnetic metamaterial affects electromagnetic waves that impinge on or interact with its structural features, which are

1. larger than wavelength
2. smaller than wavelength
3. plasma wavelength
4. radio wavelength

It is Pendry et al., who first proposed to use

1. insulators
2. natural materials
3. artificial materials
4. some ferrites

Snell's law can be derived from

1. Newton's principle
2. Fermat's principle
3. Faraday's principle
4. Pendry's principle

The angle of refraction is negative when the refractive induces of the two materials have

1. same direction
2. opposite direction
3. random direction
4. no direction

Materials exhibiting negative refractive indices are

1. most dieelectric materials
2. most doped semiconductors
3. non-natural materials
4. some ferrites