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PHYSICS TEST, Each question have 5 marks, Question 1 [5], , theorem., , , , State and prove |, , , , Question 2, Question 3, Whatis the difference between interference and Beats., Question 4, Why open organ pipe is more melodious than closed organ piped, Question 5, Find the time period of simple pendulum., Question 6, , Explain the formation of Beats analytically and prove that beat frequency itis equ, to the difference in The frequencies of two wave forming beats., , Question 7, , Derive analytically the formation of maximum and minimum interference of two, waves having amplitude A1 and A2 and phase difference ®.