When the sun shines equally on both hemispheres, it is called the equinox.
An equinox is defined as an event in which a planet’s subsolar point passes through the Equator. The equinoxes are the time when both the Northern and Southern Hemispheres experience equal amounts of daytime and nighttime.
There are two equinoxes that take place in a year - the spring equinox and the autumn equinox. During these times, the Earth's axis is not tilted towards or away from the sun which results in equal amounts of daylight and darkness in both the Northern and Southern Hemispheres. The spring equinox marks the beginning of spring season in the Northern Hemisphere, while the autumn equinox marks the beginning of autumn in the Southern Hemisphere.
Thus, when the sun shines equally on both hemispheres, it is called the equinox.
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The difference between light reflection and refraction is simple. In reflection, the light ray striking the plane returns to the originating source or medium as the waves spring off the surface. in refraction, the waves go through the surface and it alters their speed and direction.
Reflection is the bouncing back of light when it strikes a smooth surface. Generally occurs on shinny surfaces that only allow rebounding of light without permitting penetration through it. In this process, light bounces back and returns back in the same direction.
Refraction is the bending of light rays when it travels from one medium to another. This occurs in transparent surfaces that allow bending of the ray to a different medium.
In this process, light changes path i.e travels from one medium to another.
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They would be:
Alpha- these are fast moving helium atoms.
Beta- these are fast moving electrons.
Gamma - these are photons, just like light, except of much higher energy, typically from several keV to several MeV.
b.is it a physical or chemical change .
Answer:
vinegar and baking soda when mixed forms Carbon dioxide which turns lime water milky.
Explanation:
due to properties of Co2 lime water turns milky. The Answer would be A