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 12
A beam of light passes through a foggy atmosphere. The path of the beam becomes visible. What property of light does this illustrate?
A laser beam is shone through a straight tube filled with smoke. The path of the beam is visible. What does this demonstrate?
A student observes that the shadow of a tree is longer in the early morning than at noon. Explain this observation based on the rectilinear propagation of light.
A student places three cardboards with holes in a straight line and shines a torch through them. The light passes through all holes. What does this demonstrate?
A beam of light passes through a foggy atmosphere. The path of the beam becomes visible. What property of light does this illustrate?
A laser beam is shone through a straight tube filled with smoke. The path of the beam is visible. What does this demonstrate?
A student observes that the shadow of a tree is longer in the early morning than at noon. Explain this observation based on the rectilinear propagation of light.
A student places three cardboards with holes in a straight line and shines a torch through them. The light passes through all holes. What does this demonstrate?
If the source of light is very large, the shadow formed will be:
(1) Sharp
(2) Blurred
(3) Absent
(4) Colored
Which experiment best demonstrates the rectilinear propagation of light?
(1) Passing light through a prism
(2) Using a pinhole camera
(3) Observing a rainbow
(4) Using a magnifying glass
Which of the following is a direct application of rectilinear propagation of light?
(1) Fiber optics
(2) Pinhole camera
(3) Spectroscopy
(4) Polarization
Which of the following is necessary for the law of rectilinear propagation to hold?
(1) The medium must be homogeneous
(2) The medium must be opaque
(3) The medium must be colored
(4) The medium must be a vacuum
Fill in the blank: The formation of a solar eclipse is due to the ______ propagation of light.
Fill in the blank: The sharpness of a shadow depends on the ______ of the light source.
Light travels in a straight line in a ______ medium.
Light travels in a straight line unless it passes through a ______ medium.
True or False: The formation of penumbra and umbra in shadows is due to the rectilinear propagation of light.
True or False: The rectilinear propagation of light can be observed when a beam of sunlight enters a dark room through a small hole.
True or False: The rectilinear propagation of light is responsible for the formation of images in a pinhole camera.
True or False: The rectilinear propagation of light is valid in all media, including non-homogeneous media.
