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WorksheetsLIGHT-1B
Total questions: 10
Worksheet time: 3mins
The geometrical centre of a spherical mirror is called the
centre of curvature
pole of the mirror
principal focus
focal length
Which of the following relation is true for spherical mirror?
f=r
f=2r
r=2f
2f=r
The image formed when reflected rays only appear to meet but do not actually meet is
real
virtual
inverted
vertical
What is the nature of the image formed when the object is placed at the centre of curvature?
real, inverted and highly diminished
real, inverted and diminished
real, inverted and same size
real, inverted and highly enlarged
A concave mirror is also known as a diverging mirror
True
False
A ray of light travelling obliquely from a rarer medium to a denser medium bends _________________ the normal at the surface of separation of the two media
towards
away
The number of constituent colours of white light
6
5
7
8
If a ray of light strikes the surface of separation at _________ degrees, the ray goes undeviated.
1800
900
3600
1200
Light travels faster in water than in air.
true
false
depends on the temperature
depends on the pressure
A convex mirror never produces _______ images.
real
enlarged
inverted
all are correct
