Question

The phenomenon due to which a ray of light deviates from its path while travelling from one optical medium to another optical medium is called:

• A. dispersion
• B. refraction
• C. reflection
• D. diffraction

Answer 1

The correct option is B

refraction

The explanation for the correct option:

The phenomenon in which a ray of light deviates from its path while traveling from one optical medium to another optical medium is called refraction.

So, the correct option is $\mathrm{B}$.

The explanation for the incorrect options:

$\mathrm{A}$. dispersion

The phenomenon in which a polychromatic light splits into component colors when passed through a prism is called dispersion.

So, option $\mathrm{A}$ is incorrect.

$\mathrm{C}$. reflection

The mechanism of light rays getting bounced back on a smooth surface is called reflection.

So, option $\mathrm{C}$ is incorrect.

$\mathrm{D}$. diffraction

The process of change in direction of a wave that passes close to an object and changes its direction by an angle smaller than ${90}^{\circ }$ is called diffraction.

So, option $\mathrm{D}$ is incorrect.

The phenomenon in which a ray of light deviates from its path while traveling from one optical medium to another optical medium is called refraction.