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Why does sun appear flat during sunrise and sunset?
The sun rays have to travel by a larger atmospheric distance. Most of the blue light and shorter wave lengths are removed by scattering.
Only red color, which is least scattered is received by our eyes and appear to come from sun .As the appearance of sun at sunset or sunrise looks almost flat
Explain about Electric Field Electric Field: Field formed by a single or group of charges that permeates all space. Fields are responsible for making forces at a distance
What are ferrites? Ferrites are ceramic compounds having trivalent metal having three valence electrons, iron and oxide of divalent element
Give reasons for the following (i) Long distance radio broadcasts use short-wave bands. (ii) The small ozone layer on top of the stratosphere is crucial for human survival.
A sugar solution was formed by adding 80 gm of cane sugar into one liter of water. By observation it is found that it gave an optical rotation of 9.9 0 , when filled
Explain electric lawn-mower A television set having a power rating of 120W and electric lawn-mower of power rating 1 kW are both linked to a 240V supply. If 3A, 5A and 10A
The block and tackle Let two pupils every grasp a round stick, such as a broomstick, and stand various feet apart. Tie a length of clothes line cord to single of the sticks an
For the square voltage waveform displayed on an oscilloscope shown in Figure, find (a) its frequency, (b) its peak-to-peak voltage.
Ask A rugby player passes the ball 9.75 m across the field, where it is caught at the same height as it left his hand. At what angle was the ball thrown if its initial speed was 12
how Michelson interferometer can be used to measure the wavelength of sodium light.
formula for maximum height.
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