A microwave oven heats up a food item containing water molecules efficiently because frequency of waves produced in oven just matches with the frequency of vibrations of water molecules. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Category: Class 12 Physics
NCERT Solutions for Class 12 Physics updated for CBSE academic session 2021-2022.
Discussion Forum Latest Questions
As electromagnetic waves are plane polarised, therefore the receiving antenna of portable radio should be parallel to electric/magnetic part of the wave. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Yes, the magnitude of displacement current changes [actually decreases] if the frequency of the a.c. source is decreased. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Magnitudes of both conduction current as well as displacement current are zero when a capacitor is fully charged by a d.c. source. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Ultraviolet rays are used for water purifiers as well as in LASIC eye surgery. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.