Capacitor charging work stored as: MCQ with Answer and Explanation

Explanation:
Angle of incidence and reflection are measured with respect to the normal (perpendicular) at point of incidence. Not from surface. If angle from surface given, convert.

Explanation:
Minimum deviation δ_m for a prism: n = sin[(A + δ_m)/2] / sin(A/2), where A is prism angle, n refractive index. Thus δ_m depends on both A and n. Since n varies with wavelength (dispersion), δ_m also depends on wavelength, but the primary dependencies are A and n. Memory tip: 'δ_m increases with A and n; used to measure n'. This optics formula application is frequently tested in competitive exams. Always recall that minimum deviation occurs when ray passes symmetrically through prism, a key condition for derivation.

Explanation:
f = 1/P = 1 m = 100 cm.