MEDIUM
12th ICSE
IMPORTANT
Earn 100

What is the ratio of the speed of gamma rays to that of radio waves in a vacuum?

Important Questions on Electromagnetic Waves

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 5
Name any two electromagnetic waves. State anyone similarity and one difference between them.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 13 - Electromagnetic Waves>QUESTIONS>Q 6
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. 
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?