EASY
12th ICSE
IMPORTANT
Earn 100

Draw a sketch of electromagnetic spectrum, showing relative positions of UV, IR, X-rays and microwaves with respect to visible light. State approximate wavelength of any two. 

Important Questions on Electromagnetic Waves

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 7
Name an electromagnetic wave that is used in the radar system used in aircraft navigation.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 8
Name the waves used in radar. Give order of their wavelength. Explain why these particular waves are used in radar.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 9
Name the part of the electromagnetic spectrum which is : (I) suitable for radar system used in aircraft navigation.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 9
Name the part of the electromagnetic spectrum which is  produced by bombarding a metal target with high speed electrons.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 10
Name two electromagnetic waves relevant in radio transmission and communication. What is the difference between them ?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 11
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
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 12
Light waves can travel in vacuum but sound waves require a material medium to travel. why?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 13
State the regions of the electromagnetic spectrum to which belongs 21 cm wavelength.