DSSSB TGT · Free quiz
DSSSB TGT — free 5-question quiz
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Question 1 of 5
HARDWhen we look at the bottom of a swimming pool filled with water, it appears to be at a lesser depth than it actually is. If the actual depth is 4 meters and the refractive index of water is 4/3, what is the apparent depth as observed from directly above?