„Fizika II. - Angol elméleti kérdések” változatai közötti eltérés
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aNincs szerkesztési összefoglaló |
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| 64. sor: | 64. sor: | ||
*What are the special properties of laser light? List at least 3 or 4 laser application areas. | *What are the special properties of laser light? List at least 3 or 4 laser application areas. | ||
*What is the basic idea of holography? In what respect is it different from conventional photography? What is the advantage of a holographic memory over conventional storage elements? | *What is the basic idea of holography? In what respect is it different from conventional photography? What is the advantage of a holographic memory over conventional storage elements? | ||
*Prove that a solenoid with inductance '''L''' and current '''I''' has a magnetic energy <math>\frac | *Prove that a solenoid with inductance '''L''' and current '''I''' has a magnetic energy <math>\frac 1 2 LI^2</math> | ||
*Prove that in the homogeneous electric field of an ideal parallel-plate capacitor the volume energy density of the electrostatic field is <math>\frac | *Prove that in the homogeneous electric field of an ideal parallel-plate capacitor the volume energy density of the electrostatic field is <math>\frac 1 2 ED</math> | ||
*What is the displacement current and what effect does it have? | *What is the displacement current and what effect does it have? | ||
*Why is the sky blue? Why are sunsets red? | *Why is the sky blue? Why are sunsets red? | ||