WorksheetsLIGHT
Total questions: 20
Worksheet time: 10mins
Specular reflection is also known as _____
diffused reflection
irregular reflection
parallel reflection
regular reflection
If an object is placed 50 cm in front of the mirror, where will its image be formed?
25 cm behind the mirror
25 cm in front of the mirror
50cm behind the mirror
50 cm in front of the mirror
Which among the light rays in the diagram is the normal ray?
1
2
3
Which numbered part of the diagram is the angle of reflection?
1
2
3
What is the angle of reflection if the angle of incidence is 600?
300
450
600
900
Light is a form of energy produced by
illuminated objects
luminous objects
translucent objects
transparent objects
Which of the following represents a diverging light rays?
Why can you see most objects?
They absorb light
they emit light
light reflects off them
light refracts through them
It is difficult to see the roadway from a car on a rainy night because the road surface
that is normally a diffuse reflector when dry becomes a mirror surface when wet.
absorbs the light more when wet.
is obscured by the rain itself.
scatters light in all directions.
A ray of light strikes a plane mirror perpendicular to the mirror. What is the angle of reflection?
00
300
45
900
The only electromagnetic wave visible to human eye
Gamma wave
Light waves
microwaves
UV wave
If a portion of the electromagnetic spectrum has a long wavelength ,then
it has low energy
it has high energy
it has high frequency
it has a modulated frequency
What type of electromagnetic wave is used for medical purpose such as bone imaging for bone fracture?
gamma wave
infrared waves
radio waves
x rays
A color with a longest wavelength
red
violet
yellow
indigo
Which of the following has the shortest wavelength?
microwave
UV rays
x rays
infrared
Which of the following is NOT an electromagnetic wave?
radio wave
microwave
sound wave
UV rays
All electromagnetic waves travel through a vacuum at ________________
speeds that are proportional to their frequency.
speeds that are inversely proportional to their frequency.
the same speed.
None among the choices.
Which of the following has an arrangement of an increasing frequency?
gamma wave, x ray, UV ray, microwave
radio wave, infrared, gamma wave, microwave
radio wave, micro wave, UV rays, xray
gamma wave, x ray, UV ray, infrared
Which of the following graphs best represents the relationship of the frequency of an
electromagnetic wave to its wavelength?
An electromagnetic wave used for treating cancer
gamma wave
infrared
x ray
UV ray
