The radii of curvature of the faces of a doub | vedclass

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

Question

(B) Using the lens maker's formula:$\frac{1}{f} = (\mu - 1) \left( \frac{1}{R_1} - \frac{1}{R_2} \right)$Given:$f = +12\, cm$$R_1 = +10\, cm$$R_2 = -1

Vedclass · Accepted Answer

$1.5$

Vedclass · Answer

(B) Using the lens maker's formula:$\frac{1}{f} = (\mu - 1) \left( \frac{1}{R_1} - \frac{1}{R_2} \right)$Given:$f = +12\, cm$$R_1 = +10\, cm$$R_2 = -15\, cm$Substituting the values:$\frac{1}{12} = (\mu - 1) \left( \frac{1}{10} - \frac{1}{-15} \right)$$\frac{1}{12} = (\mu - 1) \left( \frac{1}{10} + \frac{1}{15} \right)$$\frac{1}{12} = (\mu - 1) \left( \frac{3 + 2}{30} \right)$$\frac{1}{12} = (\mu - 1) \left( \frac{5}{30} \right)$$\frac{1}{12} = (\mu - 1) \left( \frac{1}{6} \right)$$\mu - 1 = \frac{6}{12} = 0.5$$\mu = 1 + 0.5 = 1.5$

The radii of curvature of the faces of a double convex lens are $10\, cm$ and $15\, cm$. Its focal length is $12\, cm$. What is the refractive index of the glass?

Similar Questions

$A$ car starts from rest and moves with uniform acceleration $a$ on a straight road from time $t = 0$ to $t = T$. After that,a constant deceleration brings it to rest. In this process,the average speed of the car is

Which of the following is true in the case of an adiabatic process,where $\gamma = C_p / C_V$?

Which of the following values indicates hypertension?

The uncertainties in the velocities of two particles $A$ and $B$ are $0.05 \ m \ s^{-1}$ and $0.02 \ m \ s^{-1}$ respectively. The mass of $B$ is five times that of mass $A$. What is the ratio of uncertainties $\left(\frac{\Delta x_A}{\Delta x_B}\right)$ in their positions?

The points of intersection of the perpendicular tangents drawn to the ellipse $4x^2 + 9y^2 = 36$ lie on the curve:

Vedclass Test Series

Exam Paper Generator

Online Exam Module