If `a,b,` and `c` are the unit vectors along the incident ray, reflected ray and the outward normal to the reflector. Then
A
`b=a=c`
B
`b=a+(a.c)c`
C
`b=2a-c`
D
`b=a-2(a.c)c`
Text Solution
Verified by Experts
The correct Answer is:
D
Topper's Solved these Questions
GENERAL PHYSICS
DC PANDEY ENGLISH|Exercise MCQ_TYPE|17 Videos
GENERAL PHYSICS
DC PANDEY ENGLISH|Exercise MATCH THE COLUMN|6 Videos
FLUID MECHANICS
DC PANDEY ENGLISH|Exercise Medical entranes gallery|49 Videos
GRAVITATION
DC PANDEY ENGLISH|Exercise (C) Chapter Exercises|45 Videos
Similar Questions
Explore conceptually related problems
The incident ray, the reflected ray and the normal lie............
Distinguish between Incident ray and reflected ray .
In the figure given the angle between incident ray and the reflected ray is 70^@ Find the angle of reflection.
The angle which the reflected ray makes with the normal during the reflection is called :
(a) Derive an expression for unit vector along reflected ray (hat r) if unit vectors hat i and hat n represents unit vectors along incident light ray and normal (at point of reflection and outward from surface) respectively. (b) If vector along the incident ray on a mirror is -2 hat i+ 3 hat j + 4 hat k . Considering the x-axis to be along the normal. Then, find the unit vector along the reflected ray.
Draw a diagram to show the reflection of a ray of light by a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence and the angle of reflection.
Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.
If the incident ray falls normally on the refracting surface then
hatn_(1) is the unit vector along incident ray, hatn_(2) along normal and hatn_(3) is the unit vector along reflected ray, then which of the following must be true?
If the incident ray on a surface is along the unit vector vec v , the reflected ray is along the unit vector vec w and the normal is along the unit vector vec a outwards, express vec w in terms of vec a and vec v
