Electromagnetic Waves - Online Test
Q1. Magnitude of the electric and the magnetic fields in an plane electromagnetic wave are related by
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. The speed of plane electromagnetic waves is maximum in
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. Radio waves for FM radio have a frequency about
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Electromagnetic waves for TV and radio have a frequency about
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. Microwaves have a frequency of about
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. Food is heated in a microwave oven because
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. Infrared waves are produced by
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. Infrared waves are sometimes referred to as heat waves because
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Visible range of electromagnetic spectrum is
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Tanning of the skin in sunlight is due to
Answer : Option A
Explaination / Solution:
No Explaination.
