MEDIUM
12th ICSE
IMPORTANT
Earn 100

Name the part of the electromagnetic spectrum which is : (I) suitable for radar system used in aircraft navigation.

Important Questions on Electromagnetic Waves

EASY
12th ICSE
IMPORTANT
Name the part of the electromagnetic spectrum which is  produced by bombarding a metal target with high speed electrons.
EASY
12th ICSE
IMPORTANT
Name two electromagnetic waves relevant in radio transmission and communication. What is the difference between them ?
MEDIUM
12th ICSE
IMPORTANT
Induced electric fields due to changing magnetic fields are more readily observed than the induced magnetic fields due to changing electric fields. why?
EASY
12th ICSE
IMPORTANT
Light waves can travel in vacuum but sound waves require a material medium to travel. why?
EASY
12th ICSE
IMPORTANT
State the regions of the electromagnetic spectrum to which belongs 21 cm wavelength.
EASY
12th ICSE
IMPORTANT
State the regions of the electromagnetic spectrum to which belongs 1057MHz frequency.
EASY
12th ICSE
IMPORTANT
State the regions of the electromagnetic spectrum to which belongs 2.7K temperature  
EASY
12th ICSE
IMPORTANT
State the regions of the electromagnetic spectrum which belongs 5890A0 wavelength.