Which of the following mirror can form a real image of an object?
convex
concave
plane
either convex or concave
Which of the following can form a virtual image which is always smaller than the object?
a. Concave mirror b. Concave lens c. Convex mirror d. Convex lens
A and B
B and C
A and C
B and D
The mirror which can form a magnified image of an object is
convex mirror
plane mirror
concave mirror
both convex and concave mirrors
A convex lens has a focal length of 10cm. At which of the following distance should an object be placed in front of this convex lens so that it may act as a magnifying glass?
15cm
7cm
20cm
25 cm
The image formed by a spherical mirror is virtual. The mirror will be
either concave or convex
metallic
An object is placed at a distance of 15cm from a convex lens of focal length 10cm. The image obtained on the screen is
upright and magnified
inverted and magnified
upright and diminished
If the image formed is always virtual, the mirror can be
concave or convex
concave or plane
convex or plane
only convex
A concave mirror cannot be used as
a magnifying mirror
a torch reflector
a dentist's mirror
a rear view mirror
The image formed by a plane mirror is
virtual, behind the mirror and enlarged
virtual, behind the mirror and of the same size as the object
real, at the surface of the mirror and enlarged
real, behind the mirror and of the same size as the object
In a convex spherical mirror, reflection of light takes place at
a flat surface
a bent in surface
a bulging out surface
an uneven surface
