A beaker containing liquid is placed on a table,
underneath a microscope which can be moved along a
vertical scale. The microscope is focussed, through the
liquid onto a mark on the table when the reading on
the scale is a. It is next focussed on the upper surface
of the liquid and the reading is b. More liquid is added
and the observations are repeated, the corresponding
readings are c and d. The refractive index of the liquid
Answers
A beaker containing liquid is placed on a table, underneath a microscope which can be moved along a vertical scale. The microscope is focussed, through the liquid onto a mark on the table when the reading on the scale is a. It is next focussed on the upper surface of the liquid and the reading is b. More liquid is added and the observations are repeated, the corresponding readings are c and d. The refractive index of the liquid is
A) \[\frac{d-b}{d-c-b+a}\]
B) \[\frac{b-d}{d-c-b+a}\]
Answer:
A beaker containing liquid is placed on a table, underneath a microscope which can be moved along a vertical scale. The microscope is focussed, through the liquid onto a mark on the table when the reading on the scale is a. It is next focussed on the upper surface of the liquid and the reading is b. More liquid is added and the observations are repeated, the corresponding readings are c and d. The refractive index of the liquid is
A) \[\frac{d-b}{d-c-b+a}\]
B) \[\frac{b-d}{d-c-b+a}\]
Explanation: