It_takes_2_seconds_for_a_second_wave_to_travel_between_two_fixed_points_when_the_day_temperature_is_10¬¨¬®‚Äö√†√ªC._If_the_temperature_rises_to_30¬¨¬®‚Äö√†√ªC,_the_sound_wave_travels_between_the_same_fixed_parts_in$#

It_takes_2_seconds_for_a_second_wave_to_travel_between_two_fixed_point

1.	It_takes_2_seconds_for_a_second_wave_to_travel_between_two_fixed_points_when_the_day_temperature_is_10¬¨¬®‚Äö√†√ªC._If_the_temperature_rises_to_30¬¨¬®‚Äö√†√ªC,_the_sound_wave_travels_between_the_same_fixed_parts_in$#
A.	1.9 sec
B.	2 sec
C.	2.1 sec
D.	2.2 sec
Answer» B. 2 sec

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It_takes_2_seconds_for_a_second_wave_to_travel_between_two_fixed_points_when_the_day_temperature_is_10¬¨¬®‚Äö√†√ªC._If_the_temperature_rises_to_30¬¨¬®‚Äö√†√ªC,_the_sound_wave_travels_between_the_same_fixed_parts_in$#

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