Q9 of 31 Page 1

Use the mirror equation to show that an object placed between f and 2f of a concave mirror produces a real image beyond 2f.

Mirror formula is given by:


Where,


v=distance of image from mirror


u= distance of object from mirror


f= focal length of the mirror


For a concave mirror f<0


Object distance is negative for left side i.e. u<0


Given that: f<u<2f


By subtracting, we get;




Therefore, the image formed is negative and on left side of the mirror. So, a real image is formed beyond 2f.


More from this chapter

All 31 →
7

Show that the radius of the orbit in hydrogen atom varies as n2, where n is the principal quantum number of the atom.

 8

Distinguish between ‘intrinsic’ and ‘extrinsic’ semiconductors.

 10

Find an expression for intensity of transmitted light when a Polaroid sheet is rotated between two crossed Polaroid. In which position of the Polaroid sheet will the transmitted intensity be maximum?

Capture.PNG


 11

Use Kirchhoff’s rules to obtain conditions for the balance condition in a Wheatstone bridge.