Physics Medium

Optics

Practice Optics MCQs as part of Physics.

34 MCQs
Medium difficulty

Questions in this Topic

What is the speed of light in a vacuum approximately?
Medium
A convex lens is also known as a:
Easy
The bending of light as it passes from one medium to another is called:
Easy
The splitting of white light into its component colors is called:
Medium
Which type of mirror is used as a rear-view mirror in vehicles?
Medium
The image formed by a plane mirror is:
Medium
What causes a rainbow to form in the sky?
Medium
The human eye focuses light using the:
Easy
Total internal reflection can occur when light travels from:
Medium
Optical fibres transmit signals using:
Medium
The refractive index of a medium is given by:
Medium
Which equation represents Snell's law?
Medium
What is the SI unit of the power of a lens?
Medium
The power of a lens in dioptres equals:
Medium
Short-sightedness (myopia) is corrected using a:
Easy
Long-sightedness (hypermetropia) is corrected using a:
Easy
Young's double-slit experiment demonstrates which property of light?
Medium
Polaroid sunglasses reduce glare using:
Medium
Polarisation of light proves that light is a:
Medium
The sky appears blue mainly due to:
Medium
The Sun looks red at sunrise and sunset because:
Hard
A mirage is caused by:
Hard
Which mirror is commonly used in torches and car headlights?
Easy
The image formed by a concave lens is always:
Medium
What is the focal length of a plane mirror?
Hard
Which is the mirror formula?
Medium
The wavelength range of visible light is approximately:
Medium
What are the primary colours of light?
Easy
Which colour of visible light has the longest wavelength?
Easy
A compound microscope uses:
Medium
Laser light is:
Medium
When light passes from air into glass, which of its properties stays the same?
Hard
The speed of light in glass compared with vacuum is:
Easy
A light year is a unit of:
Easy
Topic Info
SubjectPhysics
TopicOptics
Total MCQs34
DifficultyMedium
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