what do you understand by migration mechanism
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Mitigation mechanism means lessening the effect or impact of disaster. 2. For example: Landslide mitigation involves reducing the chances of landslide by implementing some scientific methods like slope stabilisation so that rocks do not fall easily at the time of heavy rain.
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The power of a lens is defined as the reciprocal of the focal length. Lens power is measured in dioptres (D). Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.Refraction is the change in the direction of a wave passing from one medium to another.” ... Refraction makes it possible for us to have optical instruments such as magnifying glasses, lenses and prisms. It is also because of the refraction of light that we are able to focus light on to our retina.Refraction of light at the surface of the water makes swimming pools appear shallower than its actual depth when viewed from directly above.
Refraction of light at the surface of the water makes swimming pools appear shallower than its actual depth when viewed from directly above.The reason is that the rays of light reaching us from the object at the bottom of the water do not come straight to us. The light travels straight as long as it is in the water, but if it emerges obliquely from the water into the air it is bent downward toward the surface. This bending is known as refraction, and it occurs whenever light passes from one transparent medium into another of different density.Our eyes do not take refraction into account but judge the position of the object as if the light came in a straight line.
Refraction of light at the surface of the water makes swimming pools appear shallower than its actual depth when viewed from directly above.The reason is that the rays of light reaching us from the object at the bottom of the water do not come straight to us. The light travels straight as long as it is in the water, but if it emerges obliquely from the water into the air it is bent downward toward the surface. This bending is known as refraction, and it occurs whenever light passes from one transparent medium into another of different density.Our eyes do not take refraction into account but judge the position of the object as if the light came in a straight line.When light emerges from glass or water into the air it speeds up again. If it meets the glass-air boundary at any angle other than 0o it will refract away from the normal. This is true for small angles – something else happens when the angles get larger.
\huge \pink{\boxed{ \sf{\green{Question}}}}\ {\sf{ \red{l \: wish \: for \: no \: spams}}} \blue \checkmarkRefraction is the change in the direction of a wave passing from one medium to another.” ... Refraction makes it possible for us to have optical instruments such as magnifying glasses, lenses and prisms. It is also because of the refraction of light that we are able to focus light on to our retina.\huge \pink{\boxed{ \sf{\green{Question}}}}\ {\sf{ \red{l \: wish \: for \: no \: spams}}} \blue \checkmarkRefraction is the change in the direction of a wave passing from one medium to another.” ... Refraction makes it possible for us to have optical instruments such as magnifying glasses, lenses and prisms. It is also because of the refraction of light that we are able to focus light on to our retina.The power of a lens is defined as the reciprocal of the focal length. Lens power is measured in dioptres (D). Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.Refraction is the change in the direction of a wave passing from one medium to another.” ... Refraction makes it possible for us to have optical instruments such as magnifying glasses, lenses and prisms. It is also because of the refraction of light that we are able to focus light on to our retina.\huge \pink{\boxed{ \sf{\green{Question}}}}\ {\sf{ \red{l \: wish \: for \: no \: spams}}} \blue \checkmarkThe power of a lens is defined as the reciprocal of the focal length. Lens power is measured in dioptres (D). Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.Refraction is the change in the direction of a wave passing from one medium to another.” ... Refraction makes it possible for us to have optical instruments such as magnifying glasses, lenses and prisms. It is also because of the refraction of light that we are able to focus light on to our retina.
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