Human beings have two ears because two ears help - (1) to judge the direction of sound (2) to hear even a feeble sound (3) to enjoy music better (4) to distinguish between two kinds of sounds arriving at the ears in opposite directions

Human beings have two ears because two ears help - (1) to judge the direction of sound (2) to hear even a feeble sound (3) to enjoy music better (4) to distinguish between two kinds of sounds arriving at the ears in opposite directions
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(4) to distinguish between two kinds of sounds arriving at the ears in opposite directions Explanation: We have two ears basically to widen the scope of hearing so that we can find out where sounds are coming from, and from what distance; i.e., sound localization. The brain utilizes subtle differences in intensity, spectral, and timing cues to allow us to localize sound sources
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Human beings have two ears because two ears help (1) to judge the direction of sound (2) to hear even a feeble sound (3) to enjoy music better (4) to distinguish between two kinds of sounds arriving at the ears in opposite directions

Description : Human beings have two ears because two ears help (1) to judge the direction of sound (2) to hear even a feeble sound (3) to enjoy music better (4) to distinguish between two kinds of sounds arriving at the ears in opposite directions

Last Answer :  to distinguish between two kinds of sounds arriving at the ears in opposite directions

Comparing the signal strength arriving at the driven element from the desired direction to the signal strength reaching the driver from the opposite direction. A. Directivity B. Sensitivity C. Beamwidth D. Front-to-back ratio

Description : Comparing the signal strength arriving at the driven element from the desired direction to the signal strength reaching the driver from the opposite direction. A. Directivity B. Sensitivity C. Beamwidth D. Front-to-back ratio

Last Answer : D. Front-to-back ratio

Human beings can hear the sound range between: (1) 10 to 20 decibels (2) 100 to 150 decibels (3) 50 to 60 decibels (4) None of the above

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Last Answer : (4) None of the above Explanation: The most accepted sound range of human being is 0 to 120 decibels.

Two schoolgirls were traveling from the city to a dacha (summer cottage) on an electric train.'I notice,' one of the girls said 'that the dacha trains coming in the opposite direction pass us every 5 minutes. What do you think-how many dacha trains arrive in the city in an hour, given equal speeds in both directions?''Twelve, of course,' the other girl answered, 'because 60 divided by 5 equals 12.'The first girl did not agree. What do you think? -Riddles

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Last Answer : It sounds like a possibility, but an audiologist or ENT doctor would be the ones to consult.

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Two vectors are said to be equal if – (1) only their magnitudes are same (2) only their directions are same (3) both magnitude and direction are same (4) magnitudes are same but directions are opposite

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Last Answer : (3) both magnitude and direction are same Explanation: If the magnitude as well as direction of two vectors are equal, then they are known as equal vectors. In other words, two vectors are ... headed towards the same direction. For two equal vectors, their directed line segments must be parallel.

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Last Answer : both magnitude and direction are same

Two bike A & B start at the same time from salem to Rasipuram which are 60km apart. If the 2 bikes travel in opposite directions, they meet after 1 hr and if they travel in same direction(from salem towards Rasipuram), then A meets B after 3 hrs. what is the speed of bike A? a) 50 b) 70 c) 90 d) 30

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Last Answer : B Let their speed be x km/hr and y km/hr respectively Then 60 / (x+y) = ½ X+y = 120 ------------->1 Now when they move in same direction (distance travelled by A in 3 hrs) - (Distance travelled by B in ... = 140 X=70 Put x value in 1 we get Y=120 -70=50 Y=50 Therefore A's speed = 70 km/hr

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Last Answer : b. the motion of driver and follower will be in the opposite directions

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