Which one is different from others?
Ground glass
Oil paper
Rubber sheet
Wood
The darkest part of the shadow is
Penumbra
Antumbra
Umbra
None of these
Light is a form of energy that causes the sensation of
Hearing
Heat
Sight
Touch
The biggest and the brightest source of light is the
Sun
Moon
Earth
Objects which do not pass light is called
Opaque
Transparent
Semitransparent
Light travels through a
Straight line
Curved line
Parabolic line
None of the above
A solar eclipse occurs only on a
New moon day
Full moon day
Gibbous moon
Which type of objects make shadow?
Transparent objects
Opaque objects
Translucent objects
Solar eclipse become visible during
Day time
Night
Both a and b
