MCQOPTIONS
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| 1. |
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the figure. Which of the following could be inside the box? |
| A. | A rectangular glass slab |
| B. | A convex lens |
| C. | A concave lens |
| D. | A prism |
| Answer» B. A convex lens | |