Single Answer MCQ
Q-00106607
An object distance (u) is given as -20 cm in a concave mirror. Which of the following options is true about its distance?
1
Always positive
2
Always negative
3
Above the axis
4
Below the axis
Answer and Solution
Answer
B. Always negative
Solution:
In the New Cartesian Sign Convention, object distances (u) are negative when the object is placed in front of the mirror, hence it is always negative.
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