When the light source is bigger than the object.
The smaller object may be heavier due to differences in density and material composition. If the smaller object is denser or made of heavier material than the larger object, it can weigh more despite its smaller size.
The only time a smaller object is lighter than a larger object is when it's denser. A smaller iron object is heavier than a somewhat larger wooden object because iron is denser than wood.
A shadow can be smaller than the object casting it when the light source is close to the object. This causes the shadow to be more compressed and appear smaller in relation to the object.
No, eyes do not make objects smaller. The image of an object on the retina is smaller than the object itself.
Not precisely. The umbra is the TOTAL part of the shadow. In a total eclipse, where the eclipsing object is spherical, then the "inner" part of the shadow is the umbra, but in a partial eclipse, there IS NO umbra; just the "penumbra", the partial shadow.
the umbra is a darker shadow than the penumbra
No, an object shadow cannot be smaller than the object that is casting it. The size of the shadow is determined by the distance between the object and the light source, as well as the angle of the light hitting the object.
In the context of light and shadow, there are three main types of shadows: umbra, penumbra, and antumbra. The umbra is the darkest part of a shadow where all light is blocked, the penumbra is a partially shaded region surrounding the umbra, and the antumbra is the shadow's outermost region where the light source is only partially blocked. These distinctions are important in understanding the behavior of shadows in various lighting conditions.
It is smaller than some and larger than others.
an umbra is the center of the solar eclipse which is the darker part and the penumbra is farther away from the center of the eclipse and is brighter than the umbra
Concave lens can form only images that are smaller than the original object.
It can be.