See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

According to the law of conservation of momentum, momentum lost by photons = momentum gained by glow-worm Momentum lost by photons = no of photons x momentum lost by one photon = Totalenergy h h h × Debroglie' equation λ = .p = energy of 1photon λ p λ       AITS-CRT-I (Paper-1)-PCM(Sol.)-JEE (Advanced)/2021 Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 7 power×time h = × hc λ λ λ h ×power×time× hc λ =  8