0%
  • If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will _______.

    pass through the pole
    pass through the focus
    pass between the centre of focus and pole
    move in the same path
  • An image formed by a convex mirror is always ______.

    real, inverted and diminished
    virtual, erect and diminished
    real, erect and magnified
    virtual, real and magnified
  • The energy that gives us sensation of sight is called ______.

    potential energy
    electrical energy
    mechanical energy
    light energy
  • The individual unit of light is called ______.

    photon
    atom
    beam
    gluon
  • Path of a light beam is ______.

    parallel to the ground
    sometimes straight sometimes curved
    curved
    depends on medium
  •  A light beam can be _______.

    all of the answers are right
    refracted
    reflected
    sometimes straight sometimes curved
  • The spherical mirror whose inner surface is reflective is called ______.

    concave mirror
    plain mirror
    convex mirror
    reflective mirror
  • The concave mirror is also called ______.

    both
    none
    converging mirror
    diverging mirror
  • Convex mirror is also called ______.

    none are right
    diverging mirror
    both answers are right
    conversing mirror
  • The image formed by a concave mirror is ______.

    erect
    depends on where it is placed
    real
    bigger
  • The image formed by convex mirror is ______.

    real
    inverted
    all of the above answers are right
    smaller than object
  • In concave mirror what is the location of the image formed when an object is at infinity?

    in between center of curvature and principal focus
    at the principal focus
    at the center of curvature
    beyond center of curvature
  • In concave mirror what is the location of the image formed when an object is in between infinity and C?

    beyond center of curvature
    at the center of curvature
    at the principal focus
    in between center of curvature and principal focus
  • In concave mirror what is the location of image formed when object is at center of curvature ?

    beyond center of curvature
    in between center of curvature and principal focus
    at the principal focus
    at the center of curvature
  • What is the size of the image when the object is placed at the center of curvature of concave mirror?

    incomplete information to deduce the answer
    same size of the object
    smaller than object
    larger than object
  • The reason for using convex mirror in cars is because ______.

    all of the answers are correct
    convex mirror has narrow field of view so it is easier to focus on traffic
    convex mirror always form an erect image so easy identification of object
    convex mirror forms bigger image so it is easier see the object
  • Light is a form of energy produced by a ______.

    luminous object
    transparent object
    non-luminous object
    opaque object
  • An example for non-luminous object is ______.

    the moon
    a candle
    the sun
    an electric bulb
  • The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as ______.

    reflection
    Refraction
    Polarization
    Absorption
  • When light is incident on a polished surface ______ reflection takes place.

    irregular
    normal
    diffused
    regular
  • An object becomes invisible when it undergoes ______reflection.

    regular
    normal
    diffused
    irregular
  • The image formed by a plane mirror is  ______.

    real and inverted
    real and erect
    virtual and inverted
    real or virtual
  • The centre of the sphere of which the spherical mirror forms a part is called ______.

    pole
    centre of curvature
    vertex
    focus
  • The focus of a concave mirror is _______.

    virtual
    Real
    undefined
    at the pole
  • A converging mirror is known as ______.

    cylindrical mirror
    concave mirror
    plane mirror
    convex mirror
  • Radius of curvature of a concave mirror is always ______ to the mirror.

    inclined at 60o
    inclined at 45o
    perpendicular
    Parallel
  • If the image formed by a concave mirror is virtual, erect and magnified, then the object is placed

    at the centre of curvature
    at the focus
    between the pole of the mirror and the focus
    beyond the centre of curvature
  • Dentists use a _____________ to focus light on the tooth of a patient.

    convex mirror
    cylindrical mirror
    plane mirror
    concave mirror
  • An object is placed 1.5 m from a plane mirror. How far is the image from the person?

    1 m
    3 m
    2 m
    1.5 m
  • An object placed 2m from a plane mirror is shifted by 0.5 m away from the mirror. What is the distance between the object and its image?

    5 m
    2 m
    3 m
    1.5 m
  • What is the angle between the incident and reflected rays when a ray of light is incident normally on a plane mirror?

    180o
    90o
    45o
    0o
  • Name the type of image that can be obtained on a screen.

    Diverging
    Real
    virtual
    Converging
  • A ray of light is incident on a plane mirror and the angle of incidence is 25o. What is the angle of reflection?

    90o
    00
    25o
    50o
  • A ray of light is incident on a plane mirror and the angle of reflection is 50o. Calculate the angle between the incident ray and the reflected ray.

    50o
    25o
    90o
    100o
  • Which of the following is used to make a periscope?

    Plane mirror
    Concave mirror
    Lens
    Convex mirror
  • Which mirror has a wider field of view?

    Plane mirror
    Cylindrical mirror
    Convex mirror
    Concave mirror
  • The focal length of a concave mirror is 15 cm. What is its radius of curvature?

    15 cm
    7.5 cm
    45 cm
    30 cm
  • A ray of light passing through the ______ retraces its path.

    centre of curvature
    vertex
    Focus
    Pole
  • When an object is placed at the focus of a concave mirror, the image will be formed at ______.

    focus
    centre of curvature
    pole
    infinity
  • Butter paper is an example for ______ object.

    a luminous
    an opaque
    a translucent
    a transparent
  • An object of size 2.0 cm is placed perpendicular to the principal axis of a concave mirror. The distance of the object from the mirror equals to the radius of curvature. The size of the image will be ______.

    1.0 cm
    2.0 cm
    0.5 cm
    1.5 cm
  • If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will ______.

    pass through the focus
    retrace its path
    pass through the pole
    pass through the centre of curvature
  • You scored /42


    Take test again