(a) Explain the terms: (i) The gradient of a scalar field (ii) The di…

Question

(a) Explain the terms:

(i) The gradient of a scalar field

(ii) The divergence of a vector field

Discuss their physical significance by giving examples

(b) Find the ratio of populations of two states in a laser that produces light of wavelength $6328 \ \mathring{\text{A}}$ at room temperature.

Related pages

• Divergence — topic
• Advanced Engineering Physics syllabus