Rectilinear Propagation of Light
Physics ⇒ Light and Optics
Rectilinear Propagation of Light starts at 7 and continues till grade 12.
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See sample questions for grade 7
Describe what happens to the path of light when it passes from air into water at an angle.
Describe what happens to the shadow of a tree at noon compared to early morning.
Explain how a pinhole camera works using the concept of rectilinear propagation of light.
Explain why a solar eclipse occurs using the concept of rectilinear propagation of light.
If three cardboards with holes in the center are placed in a straight line and a light source is placed behind them, what will you observe on a screen placed after the third cardboard?
If you look through a straight tube, you can see the other end. If the tube is bent, you cannot see through it. What does this demonstrate?
If you place an opaque object in the path of light, what will you observe on the other side?
If you shine a torch in a dark room, what shape will the beam of light make as it travels?
State one daily life example that shows light travels in a straight line.
What happens to the shadow of an object if the source of light is moved closer to the object?
What is meant by the rectilinear propagation of light?
What is the main reason we cannot see around corners?
What type of objects form sharp shadows?
When light passes through a small hole, it forms an image on the opposite side. What is this device called?
Why do shadows form when an opaque object blocks light?
Why does a pencil appear bent when placed in a glass of water?
