short and long vowel sounds

Summary - WAVE is a form of disturbance, which travels through a material medium due to the repeated periodic motion of the particles of the medium about their position. Mechanical wave is a periodic disturbance, which requires a material medium for its propagation. Electromagnetic wave is a distur..

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..

A narrow and long hollow tube of glass or a metal, open at both ends is taken. It is partially immersed vertically in a tall jar containing water. The length of the tube above the water level in the jar serves as an air column whose natural frequency depends on its length and the diameter..

The area of the kite is 216 cm 2 . The length of short diagonal is 12 cm. Find the length of long diagonal. => 39 square cm or 36 square cm or 12 square cm or 13 square cm..

One crop is of long duration and the other is of short duratio..

It is a condition where some plants produce two types of flowers (dimorphic flowers) In one type the stamens are long and style is short but in the second type, stamens are short and style is long. This also increases the chances for cross pollination. e.g.,..

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..

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..

Around the cell body are short sensory projections called the dendrons. The fine branches of dendrons are called the dendrites. These short fibres receive messages and pass them on to the cell body or the cyton. The messages from the cyton are carried away by the long..

The partially ordered structure of liquids is called the quasilattice structure. They do not have a long-range order. Due to the cohesive forces between the molecules in liquids, molecules appear to be under the influence of each other for short-range orde..