a bus decreases its speed from 80km/h to 50km/h in 4sec find the acceleration in 4sec
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acceleration=change in velocity /time
80-50/4=30/4=7.5 will be s
deacceleration or retardation
80-50/4=30/4=7.5 will be s
deacceleration or retardation
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If we place two mirrors at a particular degrees in front of an object we can able to see more than one reflection this is called multiple reflection. If we place the mirror parallel to each other and place an object in middle we can see infinite multiple reflections. Keldioscope is example of multiple reflections. It is not periscope
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