Light Is Incident On A Glass Block As Shown In Fig. If θ1 is Increased Slightly, What Happens To θ2?                                                         

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Light is incident on a glass block as shown in fig. If θ1 is increased slightly, what happens to θ2



Correct option is

θ2 decreases slightly

As θ1 increases, α also increases. So, (90 – α) decreases and hence θ2decreases.




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