Practice question

Given: A spring-mass system has m = 2.25 kg, k = 900 N/m . What is its period? Formula: Period: T = 2π √m/k = 2π √2.25/900 = 2π √0.0025 = 2π × 0.05 = 0.314 s .. Substitution: Substituting given values into formula as per NCERT 2026-27 method. Calculation: Simplifying step by step with proper SI units like m/s², J kg⁻¹ K⁻¹, 10⁻⁵, A m⁻¹ etc. Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.