Binding energy per nucleon peaks at: MCQ with Answer and Explanation

Explanation:
Standard atmospheric pressure at sea level is 101,325 Pa, approximately 10⁵ Pa (or 1 bar, 760 mm Hg). This value is crucial for pressure calculations in fluids, thermodynamics, and meteorology. Option B (1000 Pa) is too low (about 1% of atmospheric), C and D are orders of magnitude off. Memory tip: 'Atmospheric pressure ≈ 10⁵ Pa = 100 kPa = 1 bar'. This factual knowledge is frequently tested in competitive exams as a baseline for pressure-related problems. Always use SI units (Pascal) unless specified otherwise.

Explanation:
Telescope forms inverted, virtual image at infinity (or near point). For terrestrial, erecting lens makes erect.

Explanation:
F = G m1 m2 / r² => G = F r² / (m1 m2) => [MLT⁻²][L²]/[M²] = [M⁻¹L³T⁻²].