CBSE Science Class 8
Light
Light - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Long Q&A:
Q1: Can you say what will be the angle of incidence of a ray if the reflected ray is at an angle of 90 degree?
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Ans:
From the law of reflection we know that angle of incidence = angle of reflection
Thus angle of incidence equals to 45 degree.
Q2: How many images of a mobile will be formed if it is placed between two parallel plane mirrors separated by 30 cm?
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Ans:
Infinite number of image will be formed if it is placed between two parallel plane mirrors .