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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 image formed by a plane mirror is upright.
Fill in the blank
Angle of incidence = ___________
Fill in the blank
The incident ray, the reflected ray and the normal lie in one _______
In the following diagram, measure and write the angle of incidence and draw the reflected ray.
Define the following term
Normal
Define the following term
Angle of incidence
We can see a non-luminous object when the light
The angle between incident ray and reflected ray is 60°. What is the value of angle of incidence?
Diffused reflection gives a sharp image.
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.
