Reflection and Refraction of Light Mcq's

(Q.1)  An object placed at F of a convex lens will produce an image

(a) At F         (b) Highly diminished           (c) Real and Inverted           (d) Virtual
 

(Q.2)  Mirrors used in vehicle headlights are:

(a) Concave mirrors    (b) Convex mirrors      (c) Plane mirrors          (d) Any spherical mirror
 

(Q.3)  Dispersion of light by a glass prism takes place because of

(a) Difference intime periodof the constituents of light.
(b) Difference in speeds of various constituents of white light.
(c) Scattering of light by the surface of the glass prism.
(d) Due to total internal reflection
 

(Q.4)  Negative value of focal length of a spherical mirror indicates that it is

(a) Concave mirror      (b) Convex mirror       (c) Plane mirror           (d) Convex mirror of small focal length
 

(Q.5)  Light is a form of ___________ radiation

(a) Electrical    (b) Mechanical            (c) Longitudinal          (d) Electomagnetic
 

(Q.6)  A ________ image can be obtained on a screen.

(a) Real           (b) Virtual       (c) Erect          (d) Inverted
 

(Q.7)  Refraction of light can take place at the boundary of

(a) Transparent media (b) Opaque media       (c) Any medium          (d) Rarer medium
 

(Q.9)  According to the laws of reflection

(a) Angle i = Angle r   (b) Sine i = sine r         (c) Sine i / Sine r = constant    (d) tan i = tan r
 

(Q.10)  An object placed at F of a concave mirror will produce an image

(a) At focus                 (b) Diminished            (c) Real and Inverted              (d) Virtual
 

(Q.11)  An object placed at infinity of a concave mirror will produce an image

(a) Behind the mirror  (b) Diminished            (c) Virtual and erect    (d) Enlarge
 

(Q.12)  An object placed at F of a concave lens will produce an image
(a) On opposite side of the object      (b) Enlarge      (c) Virtual and erect    (d) Real and inverted  (Q.13)  An object placed at 2F of a convex lens will produce an image

(a) At 2F         (b) Enlarge      (c) Real and Inverted  (d) Virtual
 

(Q.14)  An object placed between F and 2F of a convex lens will produce an image

(a) Virtual       (b) Diminished            (c) Real and Inverted  (d) Erect
 

(Q.15)  According to the laws of refraction (Snell’s law)
(a) Angle i = Angle r   (b) Sine i = sine r         (c) Sine i / Sine r = constant    (d) tan i= tan r  (Q.16)  Absolute Refractive index of a substance is

(a) Speed of light in vacuum / Speed of light in the medium
(b) Speed of light in water / Speed of light in the medium
(c) Speed of light in the medium / Speed of light in air
(d) Speed of light in medium/speed of light in water