Questions :-

1. Name the ray which travels from source to the reflecting surface.
(a) Reflected ray
(b) Incident ray
(c) Refracted ray
(d) None of these

2. Name the ray which comes back from the surface after reflection.
(a) Reflected ray
(b) Incident ray
(c) Refracted ray
(d) None of these

3. How many laws of reflection?
(a) Three
(b) Two
(c) Four
(d) Five

4. Second law of reflection states that _________
(a) Angle of incidence is always less than angle of reflection
(b) Angle of incidence is always more than angle of reflection.
(c) Angle of incidence is always equal to the angle of reflection.
(d) None of these

5. First law of reflection states that ____________
(a) The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane.
(b) The incident ray, the normal at the point of incidence and the refracted ray all lie in the same plane.
(c) The refracted ray, the normal at the point of incidence and the reflected ray all lie in the same plane.
(d) None of these

6. Splitting of light into its constituent colour is known as ___________
(a) Deviation
(b) Dispersion
(c) Both
(d) None

7. Reflection from a smooth surface like that of a mirror is called __________
(a) Regular reflection
(b) Irregular reflection
(c) Lateral reflection
(d) None of these

8. When all the parallel rays reflected from a plane surface are not parallel, the reflection is known as ____________
(a) Regular reflection
(b) Irregular reflection
(c) Lateral reflection
(d) None of these

9. Name the phenomena in which left appears to be right and vice versa.
(a) Regular reflection
(b) Irregular reflection
(c) Lateral inversion
(d) None of these

10. Name the optical device used to see objects that are not along the line of sight.
(a) Periscope
(b) Kaleidoscope
(c) Both
(d) None

Chapter - 16 Light Test 1 | Class - 8th Science

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