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प्रश्न
Draw a neat two ray diagram to illustrate how a concave mirror is used as a shaving mirror.
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उत्तर
We know that when an object is placed between P and F of a concave mirror, it forms a virtual and enlarged image. Thus, by using a concave mirror we can have a proper shave, as the tiny hairs are clearly visible.
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संबंधित प्रश्न
Fill in the blank
A plane mirror _________ reflects 100 percent light falling on it.
State four characteristics of the image formed by a plane mirror.
Figure shows an incident ray AO and the normal ON on a plane mirror. The angle which the incident ray AO makes with mirror is 30°. (a) Find the angle of incidence. (b) Draw the reflected ray and then find the angle between the incident and reflected rays.
A boy is standing in front of a plane mirror at a distance of 3 m from it.
(i) What is the distance between the boy and his image?
(ii) If the boy moves 1 m backward, find the distance between the image and the boy.
State whether the following statement is true or false. If false, correct it.
The image formed in a plane mirror is the real, erect, and same size as that of the object.
Define the term Principle axis.
The moon ______ sun light.
A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as shown in the Figure. Which of the following could be inside the box?
The angle of incidence is equal to the angle of reflection for perfect reflection.
