a ray of light falls normally on a glass slab. what is the angle of incidence
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Angle of incidence=0°
When a ray fall at 30Then angle of incidence=90-30=60°
In same way when it fall 90°
90°-90°=0°
When a ray fall at 30Then angle of incidence=90-30=60°
In same way when it fall 90°
90°-90°=0°
Neha714:
why
pls explain...
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When a ray of light is incident normally on a glass slab, it travels through the slab in a straight line.
hope it's right
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hope it's right
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angle???
I think 0°
why
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