Q

A student observes that the incident ray, the refracted ray, and the normal at the point of incidence all lie in one plane. Which law of refraction does this illustrate?

RRB Group D 05 Aug, 2026 (4:30 PM - 6:00 PM) 2026
✓ Answer: B First law of refraction
The correct choice is First law of refraction. It follows from the laws of reflection/refraction and the standard image-formation properties of lenses, mirrors or optical systems.
← Previous Question Next Question →

📚 Related Questions — Light

1 What happens when white light passes through a glass prism? 2 What is the ability of the eye lens to adjust its focal… 3 What is the angle between the two lateral faces of a triangular… 4 A pencil appears bent when partially submerged in water. Which scenario best… 5 How is the object distance measured in the sign convention for spherical… 6 A student places a small object 20 cm from a concave mirror…