Fermat's Theorem
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The laws of reflection are true for
the plane mirror only
the concave mirror only
the convex mirror only
all reflecting surfaces
The angle of reflection is
Choose the statements which state laws of reflection correctly?
Angle of incidence is greater than the angle of reflection
Angle of incidence is less than the angle of reflection
Angle of incidence is equal to the angle of reflection
The incident ray, the normal at point of incidence and the reflected ray all lie in the same plane.
State laws of reflection?
Write any two laws of reflection.
Irregular reflection ……… laws of reflection.
- light takes the shortest path
- light takes the quickest path
- light takes a random path
- light maintains its speed in all medium
- True
- False
The law of reflection, angle of incidence = angle of reflection can be deduced by which principle?
Conservation of energy.
Fermat's principle of least time.
It is axiomatic (cannot be deduced).
Conservation of matter.
A. Straight line path has the least distance.
B. Straight line path takes the least time.
Select the correct explanation.
- A only
- B only
- Both A and B
- None of the above