Draw ray diagrams showing the image formation by a concave mirror when an object is placed

(b) – 20 cm is the correct option.

Hint— Draw ray diagrams separately indicating the direction of incident.

Hint—Draw ray diagrams separately indicating the direction of incident and refracted rays.

Hint—Draw ray diagrams indicating the direction of incident ray and reflected ray.

(d) When an object is placed between the pole and principal focus of a concave mirror, the image formed is virtual, erect, and larger than the object.

Here, in case of concave mirror u=10 cm [u, is always negative] v =?;m = - 3 [real image] Now the magnification formula is m= -v/u or -3= -(v/-10) or , v = -30 cm. Image will...

The image formed by a concave mirror is virtual, erect and larger only when the object is placed between the pole of the mirror and its principal focus. So correct...

(c) both concave mirror and convex lens.

(i) The incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the same plane, and (ii) The angle of incidence is...

(a) Virtual image formed is larger in size in case of concave mirror.