Tag: electromagnetic waves
Questions Related to electromagnetic waves
The part of the spectrum of electromagnetic radiation used to cook food is
Which of the following rays is emitted by a human body?
The frequency from $3\times { 10 }^{ 9 }Hz$ to $3\times { 10 }^{ 10 }Hz$ is
The spectrum of molecular form the substance is called :
Which colour of light travels fastest in any medium except air?
M and N are two electromagnetic waves.
The ratio $\dfrac{wavelength of M}{wavelength of N}=10^5$. What could M and N be?
| M | N | |
|---|---|---|
| A | Microwaves | Visible light |
| B | Microwaves | $\gamma$-rays |
| C | $\gamma$-rays | Microwaves |
| D | Visible light | Microwaves |
Out of the following , whose velocity is equal to that of light?
What is the range of wavelength of the spectrum of white light in $nm$?
Name the seven prominent colours of the white light spectrum in order of their increasing frequencies
Write the approximate wavelengths for red light.