long vowel sounds

Let a long coiled spiral spring be suspended horizontally from a wooden frame using a number of threads. Ordinarily, the turns of the spring will be equidistant. On giving a sharp tap to one end of the spring, a few turns will come closer together. This state of compression moves forward..

sound is given by the formula The velocity of sound in iron was determined by two French investigators by striking one end of a long series of connected iron pipes with a hammer and measuring the time interval between the two sounds heard at the other end..

is used before vowel sounds..

Hearing - The immediate and acute effect of noise pollution is impairment of hearing. Damage to the eardrum can be caused by impulsive loud sounds or by prolonged exposure to noise. Long exposure to loud noise may result in hearing loss which may become permane..

Let a tuning fork be fixed vertically near the rim of a circular turntable. On sounding the fork and spinning the turn table, a periodic variation in the pitch of the sound will be observed. It increases when the fork is moving towards the observer and decreases when it is mov..

Question: Where did the poet meet the solitary reaper? Answer: In Scotland, while walking in the hills, the poet saw an ordinary Scottish girl, single in the field, reaping the crop and singing to herself. It sounded sad and melancholic. The entire valley was echoing and ove..

Reverberation - The persistence of audible sound even after the source has ceased emitting sound is called reverberation. If the reverberation of a sound pulse persists so long as to prolong the sound while several successive pulses are produced, th..

A sonometer, also called a monochord, was invented by Pythagoras (580-500 B.C.). It is a simple instrument used to verify the laws of stretched strings and to determine the frequency of a tuning fork. It consists of a long hollow rectangular wooden box (w) called the sound b..

>The conical envelope represents a very narrow region of high pressure called the 'shockwave'. Some examples of the formation of the shockwaves are when (i) a supersonic aircraft flies across the sky (ii) a bullet is shot from a gun. A shockwave is a highly concentrated sound wave and is ..

Question: Dover Beach --- Mathew Arnold The sea is calm to-night. The tide is full, the moon lies fair Upon the straits; - on the French coast the light Gleams and is gone; the cliffs of England stand, Glimmering and vast, out in the tranquil bay. 05 Come to the window, sweet is the night-..