WorksheetsGeometrical Optics Semester 2
Total questions: 10
Worksheet time: 11mins
What is the characteristics of concave mirror that object located at u=r
same size,real, inverted
same size, real, upright
same size, virtual, upright
diminished, real, inverted
What is the image characteristics for the object located further C, the centre of curvature of the concave mirror
real, upright, same size
real, inverted, smaller than object
real, inverted, magnify
virtual, upright, same size
Image of the convex mirror always virtual, upright and
(a)
Light is a form of (a)
A principal axis is the line joining the.........
principal focus, F and the optical centre of the lens, O
distance bertween the optical centre and principal focus
diverge after refraction through lens
centre of curvature, C and the optical centre of the lens, O
A convex mirror is used in
head lamp of a car
dentist mirror
side mirror of truck
projector
Virtual image is formed in the following except
convex mirror in a side mirror of a car
concave mirror in shaving mirror
convex lens a magnifying glass
convex lens in projector
When using a convex lens as a magnifying glass, the object distance , u is
u<f
u=f
f<u<2f
u>2f
refraction of light occurs when there is a change in the following except
velocity of light
wavelength
frequency
refractive index
A spherical concave mirror has a radius of curvature of 20 cm. A virtual image is formed by the mirror if the object distance is ...... ( you are given 2 minutes to solve this question )
5 cm
15 cm
18 cm
20 cm
