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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?
विकल्प
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
Fill in the blank
Angle of incidence = ___________
Fill in the blank
The incident ray, the reflected ray and the normal lie in one _______
Select the correct alternative
The angle of incidence on a plane mirror is 30°.The angle of reflection will be:
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
In the following diagrams, measure and write the angle of incidence and draw the reflected ray in a given case.
State in words, how do you find the location of image of an object formed by a plane mirror.
Define the following term
Reflected ray
The angle between incident ray and reflected ray is 60°. What is the value of angle of incidence?
The angle formed between the reflected ray and the normal is ______.
Angle of incidence is greater than the angle of reflection.
