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Recent questions tagged electromagnetic spectrum
+2
votes
1
answer
Thin ozone layer on top of stratosphere is crucial for human survival. Why?
asked
Apr 5, 2019
in
Class 12
by
kratos
cbse
electronic device
electromagnetic waves
communication systems
class-12
electromagnetic spectrum
+2
votes
1
answer
(i) How are microwaves produced ? Why is it necessary in microwave ovens to select the frequency of microwaves
asked
Apr 4, 2019
in
Class 12
by
kratos
electromagnetic waves
class-12
cbse
electromagnetic spectrum
+3
votes
1
answer
Radar is used for (a) detecting objects by using light waves
asked
Mar 26, 2019
in
JEE
by
kratos
nda
cbse
electromagnetic waves
jee
world war ii
class-10
general scince
jee mains
class-12
electromagnetic spectrum
+1
vote
1
answer
Which of the following rays are not electromagnetic waves?
asked
Mar 24, 2019
in
Class 12
by
kratos
neet
cbse
electromagnetic waves
jee
jee mains
class-12
electromagnetic spectrum
+3
votes
1
answer
The small ozone layer on top of the stratosphere is crucial for human survival. Why?
asked
Mar 17, 2019
in
Class 12
by
kratos
cbse
electronic device
electromagnetic waves
communication systems
class-12
electromagnetic spectrum
+1
vote
1
answer
Why are microwaves considered suitable for radar systems used in aircraft navigation ?
asked
Mar 12, 2019
in
Class 12
by
kratos
electromagnetic waves
class-12
cbse
electromagnetic spectrum
+3
votes
1
answer
Distinguish between any two types of propagation of electromagnetic waves based on
asked
Mar 12, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
ncert class 10 science
class-12
electromagnetic spectrum
+3
votes
1
answer
Name the EM waves used for studying crystal structure of solids. What is its frequency range?
asked
Mar 6, 2019
in
Class 12
by
kratos
electromagnetic spectrum
electromagnetic waves
class-12
cbse
+1
vote
1
answer
The Doctor while examining Puja'* aunt, advised to do ECG (Electrocardiograph) test for the heart. As Puja'* aunt have no idea
asked
Mar 4, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
ncert class 10 science
class-12
electromagnetic spectrum
+1
vote
1
answer
The Shivaji Festival was inaugurated in 1895 by (a) Hume (b) Morley
asked
Mar 4, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
human geography of tamil nadu
class-9
class-10
modern india
class-12
electromagnetic spectrum
+2
votes
1
answer
Is there is an artificial heart if it is there explain how it works and post photos of that in answer
asked
Feb 27, 2019
in
Class 12
by
kratos
visual communication
electromagnetic waves
web technology
class-10
class-7
ncert class 10 science
class-12
electromagnetic spectrum
+3
votes
1
answer
Write the following radiations in ascending order in respect of their frequencies : X-rays, microwaves, UV-rays and radio waves
asked
Feb 25, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
structure of atom
class-11
dual nature of radiation and matter
class-12
electromagnetic spectrum
+2
votes
1
answer
How are microwaves produced?
asked
Feb 24, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
communication systems
dual nature of radiation and matter
class-12
electromagnetic spectrum
+3
votes
1
answer
Give the short note on Infrared waves.
asked
Feb 22, 2019
in
Physics
by
kratos
cbse
communication
electromagnetic waves
class-12
contemporary physics
electromagnetic spectrum
+3
votes
1
answer
Saurabh reads in his textbook that if the distance from the bulb is doubled then intensity is reduced to one-fourth.
asked
Feb 16, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
ncert class 10 science
class-12
electromagnetic spectrum
+2
votes
1
answer
Identify the part of the electromagnetic spectrum to which the following wavelengths belong:
asked
Feb 16, 2019
in
Class 12
by
kratos
electromagnetic waves
class-12
cbse
electromagnetic spectrum
+2
votes
1
answer
(a) Arrange the following radiations in the order of their increasing wavelength: X-rays, infrared rays,
asked
Feb 12, 2019
in
Physics
by
kratos
neet
cbse
electromagnetic waves
spectrum of light
class-10
icse
class-12
nuclear physics
electromagnetic spectrum
+2
votes
1
answer
The small ozone layer on top of the stratosphere is crucial for human survival. Why?
asked
Feb 9, 2019
in
Class 12
by
kratos
cbse
electronic device
electromagnetic waves
class-12
electromagnetic spectrum
+1
vote
1
answer
Gopal went to his friend Naresh house and saw that Naresh was playing with his *** sister.
asked
Feb 5, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
ncert class 10 science
class-12
electromagnetic spectrum
+2
votes
1
answer
Thermal radiations are electromagnetic waves belonging to :
asked
Jan 29, 2019
in
Class 12
by
kratos
cbse
electromagnetic waves
ray optics and optical instruments
electromagnetic spectrum
class-12
bitsat
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