Light and optics

Question 1

What are the types of energy

Answer 1

Chemical
Radiant(light)
Electric
Atomic(nuclear)
Mechanical

Question 2

Types of light

Answer 2

Incadescent, luminescent, electric discharge, fluorescent, phosphorescence, chemiluminescence, bioluminescence

Question 3

Incandescent

Answer 3

emits light at a high temperature (wire filament)

Question 4

electic charge

Answer 4

light emitted when electricity passes through a gas (neon light, lightning)

Question 5

fluorescence

Answer 5

light emitted while receiving it from another source

Question 6

phospherescence

Answer 6

emit light for some time after receiving energy ( glow toys)0

Question 7

chemiluminescence

Answer 7

chemical energy covered to radiant energy

Question 8

bioluminescence

Answer 8

light emitted by living organisms

Question 9

what is always the same for a a convex mirror

Answer 9

smaller, upright, behind mirror & between v+f, virtual

Question 10

what is the angle of incidence

Answer 10

the angle between the normal and the incident ray

Question 11

what is the incident ray

Answer 11

the light that enters the mirror

Question 12

reflected ray

Answer 12

the light that leaves the mirror

Question 13

angle of reflection

Answer 13

the angle between the normal and the reflected ray