Electromagnetic Spectrum

The wavelength,  $K_{\alpha }$ of X-rays produced by an X-ray tube is $0.76 \mathrm{\AA }$. The atomic number of the anode material of the tube is___________

The wavelength,  $K_{\alpha }$ of X-rays produced by an X-ray tube is 0.76 Å. The atomic number of the anode material of the tube is___________

In an X-ray tube, electrons accelerated through a potential difference of $15,000$ volts strike a copper target. The speed of the emitted X-rays inside the tube is $\mathrm{m}{ \mathrm{s}}^{-1}$

How gamma rays are used to treat cancer

Electromagnetic radiation produce from nuclear reactions are known as

Gamma rays have

In which food preservation method gamma rays are used

List the uses of Gamma Rays

Which one of the following options shows the correct frequency for radio waves?

Determine the wavelength of an infrared wave with a frequency of $5000 \text{GHz}$ in $\text{μm}$.

The frequency of infrared spectrum is greater than visible spectrum.

_____ radiations are used to detect diseases in crops.

An electromagnetic wave has a frequency of $500 \mathrm{MHz}$ and a wavelength of $60 \mathrm{cm}$. Calculate velocity (in $\mathrm{m}/\mathrm{s}$ )

(Just mention the numerical value, which is a multiple of ${10}^8$)

A wave has a wavelength of $0.01 Å$. Calculate its frequency (in terms of $\mathrm{Hz}$). (Given speed of light is: $3\times {10}^8 \mathrm{m}/\mathrm{s}$)

(Just mention the numerical value, which is a multiple of ${10}^{20}$)

The reduction in the use of chlorofluorocarbons (CFCs) completely prevents the ozone layer depletion.

How many oxygen atoms are there in every molecule of ozone?

Which one of the following cause ozone layer depletion?

Ozone layer in the atmosphere plays a protective role by absorbing Ultraviolet radiations.

What is ozone? How is it formed? And where is it in the atmosphere?

Infrared waves are also known as heat waves.