Emerging Physics

Appendix

Time: One hour and thirty minutes

Model Question Paper

Maximum Marks: 50

Instructions:

1. All questions are mandatory. Internal options are provided.
2. Use of log tables or calculators is permitted.
3. Bold figures to the extreme right of a question indicate full marks.
4. Draw neat, labelled diagrams wherever necessary.

Q.1 Attempt all ten of the following: (1 × 10)         10

1. State the two prime features of modern science.
2. What is meant by a paradox in science?
3. Where are the rare-metal thermocouples used?
4. State an advantage and a disadvantage of using a gas-filled photocell in place of a vacuum photocell.
5. Explain two applications of lasers in defence.
6. State the single property of a laser that differentiates it from ordinary light ...