15 May HOW MANY TIMES DOES THE HARMONIC OSCILLATOR PASS ITS STARTING POINT IN 1 MINUTE?
A harmonic oscillator has a period of vibration of 4 second. a)what is the frequency of vibration? b)How many times does the harmonic oscillator pass its starting point in 1 minute? 2. take a wave of infrared radiation of wavelength 1.0x10-3 cm. If the amplitude of the wave =0 at time t=0 . what fraction of the maximum amplitude the wave possess at time t= 16.68 second? (show calculation). 3. radiation of wavelength 620 nm passes through 2 small slits that are 1 cm apart. Will waves that are diffracted by 60 dgree on the same direction from the two slits completely reinforce each other?(show calculation). 4. calculate the velocity of photoelectrons ejected from a sodium metal surface. with work function of 2.46 eV by ultraviolet light of wavelength 250 nm ?
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