Tube lessons

1)

Formula of a linear magnification is :

\(\frac{image distance}{object distance}\)
\(\frac{object distance}{image distance}\)
\(\frac{Vertical Height of object}{Vertical height of image }\)
None of these

2)

Linear magnification of image formed by convex lens may be :

equal to 1
greater than 1
less than 1
All of these

3)

If an object be placed at a distance of 10 cm from a lens and image is formed at a distance of 30 cm , linear magnification is :

30
\(\frac{1}{3}\)
3
300

4)

An object is placed at a distance of 50 cm from a lens and image is formed at a distance of 100 cm from the lens ;if the vertical height of image is 20 cm , then the vertical height of the object is :

10 cm
20 cm
50 cm
100 cm

5)

Linear magnification of the image of a real object by a plane mirror is always "

>1
<1
=1
\(\neq1\)

Physics

Ten Standard

Test your understanding of this lesson Linear magnification:-

You may like this videos