Answers B and D are true.
Answer:
The distance is shortenend by factor .1715
Explanation:
5 n = 1/r^2
sqrt (1/5) = r
170 n = 1 / ( x sqrt(1/5))^2
(xsqrt 1/5)^2 = 1/170
x sqrt 1/5 = .076696
x = .1715
Refractive Index is the measure of bending of light rays.
Explanation:
- Index of refraction or Refractive Index is the measurement of the phenomenon exhibited by light rays - bending of light rays when passing from one medium to another.
- It can also be measured as the ratio between speed of light in vacuum or empty space to that of the speed of light in a given medium.
- Index of refraction is denoted by n and is calculated by the following formula
n = Speed of light in vacuum/Speed of light in the given medium = c/v
- It can also be measured using the angle of incidence and angle of refraction.
n = sin i/sin r where i is the angle of incidence and r is the angle of refraction
Answer:
a) False.
b) True.
c) Flase.
Explanation:
a) An experiment proposes a possible explanation for a natural phenomenon.
False: An experiment doesn't propose possible explanation for a natural phenomenon. Actually, an experiment is designed to test already proposed explanations which normally are first developed in a more <em>theorical </em>context.
b) A experiment must be stated in a way that it can be tested by experiments.
True.
b) An experiment is a theory that has been validated many times by many scientists.
Flase: An experiment is no a theory, but a tool to test theories.
