Reflection 1

Which statement is true for the reflection of light?

• The angle of incidence and reflection are equal.

• The reflected light is less bright than the incident light.

• The sum of the angle of incidence and reflection is always greater than 90⁰.

• The beams of the incident light, after reflection, diverge at unequal angles.

Image formed by reflection from a plane mirror is

• real and inverted
  
  

• virtual and erect
  
  

• real and erect
  
  

• virtual and inverted

If an incident ray passes through the centre of curvature, the reflected ray will

• ) pass through the pole

• be parallel to the principal axis
  
  

• retrace its path
  
  

• pass through the centre of curvature

A point object is placed at a distance of 40 cm from a concave mirror of focal length 20 cm. The image will form at:

• at infinity
  
  

• at focus
  
  

• at C
  
  

• behind the mirror

Focal length of a concave mirror is

• negative
  
  

• positive

• depends on the position of object
  
  

• depends on the position of image

Which mirror can produce a virtual, erect and diminished image of an object?

• Concave

• Convex

• Plane

• Both concave and convex

If the image is formed behind the mirror, then the image distance will be

• positive or negative depending on the size of the object
  
  

• neither positive nor negative
  
  

• positive
  
  

• negative

A full length of the image of a distant tall building can definitely be seen using:

• concave mirror

• convex mirror

• plane mirror

• all of these

An object is placed at a distance of 10cm in front of a concave mirror of a focal length of 20 cm.

• virtual and erect

• real and erect

• real, inverted and of the opposite size as that of the object

• real, inverted and of the same size as that of the object

Magnification produced by a shaving mirror:

• is less than one

• is more than one

• is equal to one

• can be more than or less than one, depending upon the position of the object in front of it