What is light? Is it a slight effect or drastic? The light is the only thing that makes us capable of seeing things. It is daytime only when we can see. And at night, all things become not visible without light.
Effect of light on the mirror:
Light is the only energy that helps humans to see things.
One can also call light radiation.
Such radiation gets affected by many other objects.
The mirror is the only thing that reflects the light.
It also changes the light direction of light.
Laws of reflection:
Mainly, there are two laws of reflection. And these are as follows:
First law:
This law constitutes that the incidence angle & reflection angle are always equal.
Second law:
All three rays, i.e., reflected, incident, and normal, occur in the same plane.
Terms:
1. Incident Ray:
It is a ray of light that falls on the surface.
2. Reflected rays:
It is a ray that gets reflected.
3. Normal:
The normal line is perpendicular to the reflected surface.
4. Reflection angle:
The angle which gets formed with the normal.
Incident rays always include one angle.
5. Incidence angle:
The angle which gets formed between normal and incident rays.
In guinea pigs, short fur (S) is dominant, and long fur (s) is recessive. A female guinea pig with short fur is mated with a male long fur. Half of the guinea pigs in the litter have short fur, and the other half have long fur. What are the genotypes of the mother and father guinea pigs?
A. SS and ss
B. Ss and Ss
C. ss and ss
D. Ss and ss
Question 2
Who developed the theory of evolution?
A. Reginald Punnett
B. Charles Darwin
C. Alfred Wegener
D. Gregor Mendel
Question 3
A good hypothesis often includes a(n) statement.
A. then-if
B. question
C. guessing
D. if-then
Question 4
When light is produced using heat, what is it called?
A. Luminescence
B. Incandescence
C. Fluorescence
D. Flammable
Question 5
How many neutrons does an atom of hydrogen contain?