Tag: spectra
Questions Related to spectra
The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
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