A student does the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He can get a correct measure of the angle of incidence and the angle of emergence by following the labelling indicated in figure
Important Questions on Multiple Choice Questions
The potential difference between the two points X and Y would be equal to in case/cases :
A student traces the path of a ray of light passing through a rectangular glass slab.
For measuring the angle of incidence, he must position the protractor in the manner shown in figure:
A student performed the experiment of glass slab and with different angles of incidence measured the angles of refraction and emergence in each case. He then recorded his observations as given in the table.
| S.No. | Angle of incidence | Angle of refraction | Angle of emergence |
| A | |||
| B | |||
| C | |||
| D |
The correct observation is :
In the experiment on tracing the path of a ray of light passing through a rectangular glass slab, the correct setting of the protractor (D), for measuring the angle of incidence, and the angle of emergence correspond, respectively, to diagrams :
An experiment for tracing the path of ray of light through a glass slab was set up in the laboratory and ray diagram was drawn as shown here.
The teacher asked the students to identify the refracted ray. The correct answer is :
