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"The line joining the center of curvature and pole of the spherical mirror is known as" Multiple Choice Questions (MCQ) on geometrical optics with choices focal length, center of curvature, principal axis, and vertex for online study. Solve lenses and characteristics quiz questions for school certificate programs for online high school.

MCQ: The line joining the center of curvature and pole of the spherical mirror is known as

1. center of curvature
2. focal length
3. principal axis
4. vertex

C

MCQ: Some people can not see distant objects clearly without spectacles. This defect is called

1. accommodation
2. stress
3. farsightedness
4. nearsightedness

D

MCQ: The focal length is positive for

1. diverging lens
2. converging lens
3. biconcave lens
4. convex lens

B

MCQ: The refractive index of a medium is

1. Speed of light in air to speed of light in vacuum
2. Speed of light in vacuum to speed of light in air
3. focal length to object distance
4. speed of light in the medium x speed of light in the air

A

MCQ: Only virtual and erect images can be formed by a

1. convex mirror
2. concave mirror
3. silver mirror
4. plane mirror

A