Light travels in

• straight line

• curved line

• zig-zag line

• randomly

Which of the following is not a luminous object?

• Star

• An energized light bulb

• Planets

• A burning match stick

Pinhole camera produces ___________

• an inverted and enlarged image

• an erect and enlarged image

• an Inverted and small image

• an erect and small image

What is lateral inversion?

• Image bends laterally

• Image becomes inverted

• Image becomes distorted

• Right of the object appears left of the image

The path along which light travels in a given direction is called

• optical medium

• ray of light

• beam of light

• source of light

In which type of object light will get completely absorbed?

• Transparent

• Translucent

• Opaque

• All of them

Which of the following is a homogenous medium?

• Glass

• Muddy water

• Fog

• Clouds

A solar eclipse is an eclipse that occurs when the moon passes between the ______________

• Earth and Mercury

• Sun and Mercury

• Earth and Venus

• Sun and Earth

Which of the following is not an optical medium?

• Glass

• Wood

• Water

• Air

What is our primary source of light?

• Flashlight

• Bulb

• Moon

• Sun