Types of Objects
Which of the following is a luminous object?
Q. The shadow formed due to a point source of light has_____.
- Only umbra region
- Only penumbra region
- Both umbra and penumbra regions
- Depends on the distance of source from the obstacle
Q. Red light is allowed to fall on a blue object. It will appear:
- None of these
Q. Stars emit light.
Q. The shadow of a/an
object will be more prominent than the shadow of a/an object under the same conditions.
Q. We cannot see objects which do not emit light.
Q. When a beam of light is projected,
objects cast a shadow, while objects do not.
Q. Moon emits light.
Q. Identify the opaque object.
Q. Opaque objects _____ light.