Question

If the raddi of curvature of convex lenses is 0.05m and 0.05m.its refractive index is 1.5 then the focal length is

Answer 1

$\color{darkblue}\underline{\underline{\sf Given-}}$

• Radius of Curvature of double Convex Lens is ${\sf (R_1)=0.05m\:and \: (R_2)=0.05m}$
• Refractive index ${\sf (\mu)}$ = 1.5

$\color{darkblue}\underline{\underline{\sf To \: Find-}}$

• Focal Lenght (f)

$\color{darkblue}\underline{\underline{\sf Solution-}}$

★ For Double Convex Lens

$\implies{\sf \dfrac{1}{f}=(\mu-1)\left[\dfrac{1}{+R}-\dfrac{1}{-R}\right]}$

$\implies{\sf \dfrac{1}{f}=(\mu-1)\left(\dfrac{2}{R}\right)}$

$\implies{\sf f=\dfrac{R}{2(\mu-1)} }$

$\implies{\sf f=\dfrac{0.05}{2(1.5-1)}}$

$\implies{\sf f=\dfrac{0.05}{2×0.5} }$

$\color{red}\implies{\sf f = 0.05\:m }$

$\color{darkblue}\underline{\underline{\sf Answer-}}$

Focal Lenght of Convex Lens is $\color{red}{\sf 0.05\:m}$

Answer 2

Answer:

CHEMISTRY

A solution is defined as a:

A .

Homogeneous mixture of two or more substances

B .

Heterogeneous mixture of two or more substances

C .

Homogeneous mixture of liquid and solid components only

D .

Homogeneous mixture consisting of water as one of the components

A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. 

A solution consists of a solute and a solvent. 

The solute is the substance that is dissolved in the solvent.

For example, in a saline solution, salt is the solute dissolved in water as the solvent.