WHY Things Appear Raised in Water (in Hindi) #Shorts

In a certain examination, the candidates can offer papers in English or Hindi or both the subjects. The number of candidates who appeared in the examination is 1000 of whom 650 appeared in English and 200 appeared in both English and Hindi.Based on this information answer the questions given below: Find the number of candidates who offered paper in Hindi.

In a certain examination, the candidates can offer papers in English or Hindi or both the subjects. The number of candidates who appeared in the examination is 1000 of whom 650 appeared in English and 200 both in English and Hindi. (i) Hindi , (ii) English only, (iii) Hindi only

Why does the sun appear red at sunset ?

A rectangular tank 8m deep is full of water. By how much does the bottom appear to be raised if the refractive index of water is 4//3 ?