C) A light spiral spring is loaded with a mass of 50g and it extends
by 10cm(i) Calculate the period of
small vertical oscillations
ii) A simple pendulum has a period
of 2.0s and an amplitude of Swing
5.0cm. Calculate the maximum
magnitudes of
이 :
the velocity of the bob,
the accelerations of the bob

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?