A very small bulb, a rectangular block of transparent plastic, a piece of opaque cardboard, anda screen are placed as shown in the figure below. Light travels slowly through the plastic as compared toair. The room is dark and the bulb is turned on. If the block of plastic were removed, would the heightof the shadow on the screen increase, decrease or remain the same? Please support your answer with areasonably correct ray diagram.PlasticVery smallbulbScreenCardboard

The ray diagram of the light is shown as,

Answered: A very small bulb, a rectangular block…

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