Light & Optics MCQs with Answers

The formation of rainbow is due to _?

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

In mirrors, if image distance (q) is negative, the image will be?

• A.Real
• B.Virtual
• C.Inverted
• D.Magnified

Past Paper MCQ

The rear view mirror used in the vehicles is _?

• A.Plane mirror
• B.Convex mirror
• C.Concave mirror
• D.Cylindrical mirror

When an object reflects the entire component colours of light, it appears ?

• A.Black
• B.Blue
• C.Transparent
• D.White

Medium in which velocity of light remains constant is?

• A.Homogeneous medium
• B.Heterogeneous medium
• C.Transparent medium
• D.Opaque medium

When an object is placed far away from the concave mirror its image will be?

• A.Real and inverted
• B.Diminished
• C.Formed at the focus
• D.All of these

When a ray of light strikes a brick wall, it is?

• A.Reflected by it
• B.Absorbed by it
• C.Transmitted through it
• D.Refracted by it

Two sources of light are coherent if they emit rays of?

• A.Same frequency but varying phase difference
• B.Same amplitude and same frequency
• C.Different wavelengths but same intensity
• D.Same wavelength with constant phase difference

Two light waves which are not coherent cannot produce?

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

When the object is placed between F and 2F of a convex lens, the image will be ?

• A.Real, inverted and larger in size
• B.Real, inverted and smaller in size
• C.Virtual, erect and larger in size
• D.Virtual, inverted and smaller in size