Across
- 2. Unit for frequency.
- 3. Mass per unit volume.
- 4. Ratio of useful energy to total energy.
- 8. Number of oscillations per second.
- 9. Instrument that can measure e.m.f.
- 11. Rate of charge flow.
- 12. Rate of work done.
- 14. EM waves in thermal radiation.
- 15. Force × distance
- 16. Elements with same proton number but different nucleon number.
- 17. Bending of waves due to change in speed.
- 20. Force due to gravity.
- 21. Solid to liquid.
- 23. EM waves used in satellite communication.
- 24. Area under speed-time graph.
Down
- 1. Force per unit area.
- 4. A magnet that can be turned on or off.
- 5. Heat transfer by vibration of particles.
- 6. Device that changes electrical to mechanical energy.
- 7. Heat transfer in fluids.
- 10. Speed with direction.
- 13. Unit for force.
- 18. Reflection of sound.
- 19. Time taken per oscillation.
- 22. Radioactive radiation that is also an EM wave.