- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies

- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who

# Magnification produced by a concave lens is always:**(a) **more than 1 **(b)** equal to 1 **(c)** less than 1 **(d) **more than 1 or less than 1

**(c) less than 1**

__Explanation__

Magnification formula:

$m=\frac {v}{u}=\frac {h_2}{h_1}$

where, $m$ = magnification, $v$ = image distance, $u$ = object distance, ${h_2}$ = height of image, ${h_1}$ = height of object.

From the magnification formula, it is clear that the magnification varies directly with the size of the image. The image formed by a concave lens is always smaller than the object, therefore, the magnification $(m)$ produced by a concave lens is always less than **1.**

- Related Articles
- Magnification produced by a convex mirror is always:(a) more than 1 (b) less than 1 (c) equal to 1 (d) more or less than 1
- Linear magnification produced by a concave mirror may be:(a) less than 1 or equal to 1 (b) more than 1 or equal to 1(c) less than 1, more than 1 or equal to 1 (d) less than 1 or more than 1
- Linear magnification produced by a convex lens can be:(a) less than 1 or more than 1.(b) less than 1 or equal to 1.(c) more than 1 or equal to 1.(d) less than 1, equal to 1 or more than 1.
- The numerical ratio of displacement to distance for a moving object is$(a).$ always less than 1$(b).$ always equal to 1$(c).$ always more than 1$(d).$ equal or less than 1
- Magnification produced by a plane mirror is:(a) less than one (b) greater than one (c) zero (d) equal to one
- Use the number line and write the number which is: (a) 3 more than 4 (b) 5 less than 1
- Linear magnification (m) produced by a rear view mirror fitted in vehicles:(a) is equal to one (b) is less than one(c) is more than one (d) can be more less than one depending on the position of object
- Find any five rational number less than 1.
- Using the number line write the integer which is :(a) 3 more than 5(b) 5 more than $–5$(c) 6 less than 2(d) 3 less than $–2$
- In order to obtain a real image twice the size of the object with a convex lens of focal length 15 cm, the object distance should be:(a) more than 5 cm but less than 10 cm (b) more than 10 cm but less than 15 cm(c) more than 15 cm but less than 30 cm (d) more than 30 cm but less than 60 cm
- Magnifying power of a concave lens is(a) always > 1 (b) always < 1 (c) always = 1 (d) can have any value
- Find maximum number of elements such that their absolute difference is less than or equal to 1 in C++
- How $\frac{3}{5}$ and $\frac{2}{3}$ is less than $1$.
- State whether the following are true or false. Justify your answer.The value of tan \( A \) is always less than 1 .
- How to check if the date is less than 1 hour ago using JavaScript?

Advertisements