The light reflected by plane mirror may form a real images ____________.

(a)

If the rays incident on the mirror are diverging

(b)

If the rays incident on the mirror are converging

(c)

If the object is placed very close to mirror

(d)

Under no circumstance

A small object is placed 10 cm in front of a plane mirror. If you stand behind the object 30 cm from the object and look at its image, the distance forced for your eye will be ____________.

(a)

60 cm

(b)

20 cm

(c)

40 cm

(d)

80 cm

A ray of light is incident normally on a lane mirror. The angle of reflection will be _____________.

(a)

0°

(b)

90°

(c)

will not be reflected

(d)

None of these

When a plane mirror is rotated through an angle θ , then the reflected ray turns through the angle 2θ, then the size of the image _____________.

(a)

Is doubled infinite

(b)

Is halved

(c)

Remains the same

(d)

Becomes infinite

Ray optics is valid, when characteristic dimensions are ______________.

(a)

of the same order as the wave length of light

(b)

much smaller then the wavelength of light

(c)

of the order of one millimeter

(d)

much larger than the wavelength of light