Question
John is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between john and his image will be? [5 MARKS]
Answer:
:
Concept : 1 Mark
Calculation : 3 Marks
Result : 1 Mark
In the case of a plane mirror, the distance between the object and the mirror is same as the distance between the image and the mirror.
Given,
Distance between the mirror and John's image = 4 m
Distance between mirror and john = 4 m
If John moves 1 m towards the mirror, then distance between mirror and john = 4-1 = 3
Since in plane mirror, the distance between object and mirror is same as that of image and mirror = 3 m
Hence, the distance between John and his image = 3+3 = 6 m
Was this answer helpful ?
:
Concept : 1 Mark
Calculation : 3 Marks
Result : 1 Mark
In the case of a plane mirror, the distance between the object and the mirror is same as the distance between the image and the mirror.
Given,
Distance between the mirror and John's image = 4 m
Distance between mirror and john = 4 m
If John moves 1 m towards the mirror, then distance between mirror and john = 4-1 = 3
Since in plane mirror, the distance between object and mirror is same as that of image and mirror = 3 m
Hence, the distance between John and his image = 3+3 = 6 m
Was this answer helpful ?
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