JEE Main 2014 Physics question
Match List-I (Event) with List-II (Order of the time interval for the happening of the event) and select the correct option from the options given below the lists. List-I: (a) The rotation period of earth (b) Revolution period of earth (c) Period of a light wave (d) Period of a sound wave List-II: (i) s (ii) s (iii) s (iv) s
Answer: (1)
Solution
One day is 86400 s, of order s (i). One year is s, of order s (ii). Visible light has a frequency near
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