Light & Optics MCQs with Answers

Which metal is known as the best reflector of light?

• A.Aluminum
• B.Silver
• C.Mercury
• D.Copper

Rainbow is the best example of _?

• A.Dispersion of light
• B.Spectrum of white light
• C.Reflection of light
• D.Diffraction of light

Light travels in a ?

• A.Straight line
• B.Curved path
• C.Zigzag path
• D.Circular path

Past Paper MCQ

When light travels from a denser medium to a rare medium, it bends due to _?

• A.Dispersion
• B.Reflection
• C.Diffraction
• D.Refraction

Which instrument among the following is used for observing multiple images of objects?

• A.Periscope
• B.Kaleidoscope
• C.Microscope
• D.Telescope

When a light ray enters from a denser medium to a rarer medium, it bends ?

• A.Towards the normal
• B.Away from the normal
• C.Parallel to the normal
• D.Along the normal without deviation

The phenomenon of total internal reflection is observed for an angle of incidence ?

• A.Equal to critical angle
• B.Greater than critical angle
• C.Less than critical angle
• D.Equal to 90 degrees

A mirror forms a virtual image of an object. What type of mirror is it?

• A.Plane mirror
• B.Concave mirror
• C.Convex mirror
• D.Both concave and convex mirrors

Newton's rings are formed due to _?

• A.Diffraction
• B.Interference
• C.Polarization
• D.Scattering

In a reflection ray, the angle of incidence is _ to the angle of reflection.

• A.Perpendicular
• B.Double
• C.Half
• D.Equal