10class Reflection Test 1

The scientist who burned ships using mirrors is ____

• Archimedes
• Pierre de fermat
• Newton
• Boyle

The geometrical center of curved mirror is called_____

• Center of curvature
• Pole
• Radius of curveture
• Focus

The line which passes through the center of curvature and pole is _________

• Axis
• Reflected ray
• Incidence ray
• Principal axis

The distance between pole and centre of curvature is ____________

• Focal length
• Radius of curvature
• Objest distance
• Image distance

The distance between focus and pole of a mirror is called _____

• Radius of curvature

• Height of the mirror
• Objest distance
• Focal length

The angle between incidence ray and normal ray is called as _____

• angle of normal
• angle of reflection
• angle of ray
• angle of incidence

The angle between normal and reflected ray is called

• angle of normal
• angle of reflection
• angle of ray
• angle of incidence

The image that we get by extending the rays backwards is called __________

• virtual
• real
• diminished
• magnefied

The scientist who used Convex mirrors to burn ships is

• Newton
• Archimedes
• Pascal
• None

The ratio of focal length of a spherical mirror to its radius of curvature is

• 1 : 2

• 1 : 0.5

• 2 : 1

• 3 : 1