A wire mesh consisting of very small squares | vedclass

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

Question

(A) The lens formula is given by $\frac{1}{v} - \frac{1}{u} = \frac{1}{f}$.Given,the object distance $u = -8 \, cm$ (using sign convention) and the fo

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(A) The lens formula is given by $\frac{1}{v} - \frac{1}{u} = \frac{1}{f}$.Given,the object distance $u = -8 \, cm$ (using sign convention) and the focal length $f = +10 \, cm$ for a converging lens.Substituting these values into the lens formula:$\frac{1}{v} - \frac{1}{-8} = \frac{1}{10}$$\frac{1}{v} + \frac{1}{8} = \frac{1}{10}$$\frac{1}{v} = \frac{1}{10} - \frac{1}{8} = \frac{4 - 5}{40} = -\frac{1}{40}$Thus,$v = -40 \, cm$.The magnification $m$ produced by the lens is given by $m = \frac{v}{u}$.$m = \frac{-40}{-8} = 5$.Therefore,the magnification produced by the lens is $5$.

$A$ wire mesh consisting of very small squares is viewed at a distance of $8 \, cm$ through a magnifying converging lens of focal length $10 \, cm$,kept close to the eye. The magnification produced by the lens is

Similar Questions

The image formed by an objective of a compound microscope is

The length of the tube of a microscope is $10 \, cm$. The focal lengths of the objective and eye lenses are $0.5 \, cm$ and $1.0 \, cm$ respectively. The magnifying power of the microscope is about:

The length of the compound microscope is $14 \, cm$. The magnifying power for a relaxed eye is $25$. If the focal length of the eye lens is $5 \, cm$,then the object distance for the objective lens will be.......$ cm$.

$A$ microscope has an objective of focal length $2 \ cm$,an eyepiece of focal length $4 \ cm$,and a tube length of $40 \ cm$. If the distance of distinct vision is $25 \ cm$,the magnification of the microscope is:

$A$ scientist is observing a bacteria through a compound microscope. For better analysis and to improve its resolving power,he should: (Select the best option)

Vedclass Test Series

Exam Paper Generator

Online Exam Module