In finding out the refractive index of a glas | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) $1 	ext{ MSD} = \frac{1 	ext{ cm}}{20} = 0.05 	ext{ cm}$.$1 	ext{ VSD} = \frac{49}{50} 	ext{ MSD} = \frac{49}{50} 	imes 0.05 	ext{ cm} = 0.

Vedclass · Accepted Answer

$1.42$

Vedclass · Answer

(A) $1 	ext{ MSD} = \frac{1 	ext{ cm}}{20} = 0.05 	ext{ cm}$.$1 	ext{ VSD} = \frac{49}{50} 	ext{ MSD} = \frac{49}{50} 	imes 0.05 	ext{ cm} = 0.049 	ext{ cm}$.$LC = 1 	ext{ MSD} - 1 	ext{ VSD} = 0.05 - 0.049 = 0.001 	ext{ cm}$.For the mark on paper,$L_1 = 8.45 	ext{ cm} + 26 	imes 0.001 	ext{ cm} = 8.476 	ext{ cm} = 84.76 	ext{ mm}$.For the mark on paper through the slab,$L_2 = 7.12 	ext{ cm} + 41 	imes 0.001 	ext{ cm} = 7.161 	ext{ cm} = 71.61 	ext{ mm}$.For the powder particle on the top surface,$ZE = 4.05 	ext{ cm} + 1 	imes 0.001 	ext{ cm} = 4.051 	ext{ cm} = 40.51 	ext{ mm}$.Actual $L_1 = 84.76 - 40.51 = 44.25 	ext{ mm}$.Actual $L_2 = 71.61 - 40.51 = 31.10 	ext{ mm}$.Since $\mu = \frac{	ext{Real Depth}}{	ext{Apparent Depth}} = \frac{L_1}{L_2}$,$\mu = \frac{44.25}{31.10} \approx 1.42$.

Similar Questions

The velocity of light in glass having a refractive index of $1.5$ is $2 \times 10^8 \ m/s$. What is the refractive index of a liquid in which the velocity of light is $2.50 \times 10^8 \ m/s$?

The ratio of the thickness of plates of two transparent mediums $A$ and $B$ is $6 : 4$. If light takes equal time in passing through them,then the refractive index of $B$ with respect to $A$ will be:

$A$ ray of light travels from air to water to glass and again from glass to air. The refractive index of water with respect to air is '$X$', glass with respect to water is '$Y$', and air with respect to glass is '$Z$'. Which one of the following is correct?

An insect starts moving up in a liquid from point $O$ with a variable refractive index $\mu = \mu_0(1 + ay)$,where $y$ is the depth of the liquid from the surface. If $u$ is the speed of the insect,what is its apparent speed to the observer $E$?

On a glass plate,a light wave is incident at an angle of $60^o$. If the reflected and the refracted waves are mutually perpendicular,the refractive index of the material is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module