The resistance of a conductor is inversely proportional to its MCQ with Answer and Explanation

Explanation:
T = 1/(2×10⁶) = 0.5×10⁻⁶ s = 0.5 μs.

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:
Light speed max in vacuum c = 3×10⁸ m/s. Slower in medium, v = c/n. Higher n, slower. Diamond n≈2.42, speed lowest. Vacuum n=1.