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प्रश्न
A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the following figure. The pencil of light coming out of the hole falls on a mirror.
At which point should the eye be placed, so that the hole can be seen?
पर्याय
A
B
C
D
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उत्तर
A
Explanation:
Eye should be placed at A because the hole can be seen only, when the angle of incidence is equal to the angle of reflection.
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संबंधित प्रश्न
Write true or false of the following statement.
The objects are seen around us due to irregular reflection of light.
Fill in the blank
Angle of incidence = ___________
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
The following diagram shows an incident ray AO and the normal ON on a plane mirror. Find the angle of incidence and angle of reflection.
State in words, how do you find the location of image of an object formed by a plane mirror.
Define the following term
Incident ray
Define the following term
Angle of incidence
The angle formed between the reflected ray and the normal is ______.
Angle of incidence is greater than the angle of reflection.
Assertion (A): A ray incident along normal to the mirror retraces its path.
Reason (R): In reflection, the angle of incidence is always equal to the angle of reflection.
