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- Physics
- An observer can see through a small hole on the side of a jar (radius 15 cm ) at a point at height of 15 cm from the bottom (see figure). The hole is at a height of 45 cm . When the jar is filled with a liquid up to a height of 30 cm the same observer can see the edge at the bottom of the jar. If the refractive index of the liquid N / 100, where N is an integer, the value of N is. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/fe5bae753fed77889b0ebd54e3094052-.png />
Q.
An observer can see through a small hole on the side of a jar (radius at a point at height of from the bottom (see figure). The hole is at a height of When the jar is filled with a liquid up to a height of the same observer can see the edge at the bottom of the jar. If the refractive index of the liquid , where is an integer, the value of is________.
Answer: 158
Solution: