science
Grade-7
Easy
Question
During refraction through a glass slab, the incident ray is not parallel to ____.
- Normal line
- Refracted ray
- Not parallel to the emergent ray
- None of the above
Hint:
Incident and refracted ray are not parallel to each other.
The correct answer is: Refracted ray
- When a light ray travels through a glass slab the ray will travel from a rarer medium to a denser medium.
- The refracted light ray will bend towards the normal.
- So, the incident ray and the refracted ray will not be parallel to each other.
- So, the correct option is b.
- Incident and emergent ray are parallel in refraction through a glass slab.
- Incident ray can be parallel to normal line.
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