The bouncing back of light from a surface is called:
- ARefraction
- BReflection
- CDiffraction
- DDispersion
According to the law of reflection, the angle of incidence is:
- AGreater than the angle of reflection
- BLess than the angle of reflection
- CEqual to the angle of reflection
- DUnrelated to the angle of reflection
The image formed by a plane mirror is:
- AReal and inverted
- BVirtual and erect
- CReal and erect
- DVirtual and inverted
When light enters a denser medium, it:
- ABends away from the normal
- BBends toward the normal
- CGoes straight through
- DReflects back
The critical angle is the angle of incidence for which the angle of refraction is:
Optical fibers work on the principle of:
- ARefraction
- BDiffraction
- CTotal internal reflection
- DDispersion
The splitting of white light into seven colours by a prism is called:
- AReflection
- BRefraction
- CDispersion
- DDiffraction
A magnifying glass uses which type of lens?
- AConcave
- BConvex
- CCylindrical
- DPlane
The image formed on the retina is:
- AVirtual and upright
- BReal and inverted
- CVirtual and inverted
- DReal and upright
The least distance of distinct vision (near point) for a normal eye is:
- A10 cm
- B25 cm
- C50 cm
- D100 cm
