question_answer

Match List - I (Event) with List-II (Order of the time interval for happening of the event) and select the correct option from the options given below the lists                                               [JEE ONLINE 19-04-2014]

	List –I		List-II
(1)	Rotation period of earth	(i)	\[{{10}^{5}}s\]
(2)	Revolution period of earth	(ii)	\[{{10}^{7}}s\]
(3)	Period of light wave	(iii)	\[{{10}^{-15}}s\]
(4)	Period of sound wave	(iv)	\[{{10}^{-3}}s\]

A)  (1)-(i), (2)-(ii), (3)-(iii), (4)-(iv)

B)  (1)-(ii), (2)-(i), (3)-(iv), (4)-(iii)      

C)  (1)-(i), (2)-(ii), (3)-(iv), (4)-(iii)

D)  (1)-(ii), (2)-(i), (3)-(iii), (4)-(iv)

Correct Answer: A

Solution :

[a] Rotation period of earth is about Revolution period of earth is about 365 days Speed of light wave Wavelength of visible light of spectrum Therefore period of light wave is  (approx.)