It takes nd/ (lambda*f) time or a short pulse of light to travel from one end of the glass to the other.
If we talk about free space, that is, vacuum, light travels at a speed of 3x10^8 m/s, yet inside a glass light travels at a speed of v= c/n, where v is the velocity of the light and n is the refractive index. Now,
v=d/t,
so t= d/v
t= d/ (c/n)= n*d/c
c= lambda*f
t= nd/(lambda*f)
here, d is the thickness of the block, t is the time required and c refers to speed of light.
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Answer:the answer is C.
Explanation: he wanted to make the comparison between the civil war and American revolution and fighting for equality
The best and the correct answer among the choices provided by the question is the first choice or letter A.
Less than one per cent of the <span>home robberies does the victim know the offender.</span>
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If Dr. Maple is a behaviorist, he would most likely believe that the cause of a child's disruptive behavior in school is the result of "his prior experiences".
Behaviorism, otherwise called behavioral psychology, is a hypothesis of learning which base their idea that all practices are gained through conditioning. This happens through association with the surroundings. Behaviorists trust that our reactions to environmental stimuli shape our activities. Behaviorism is concerned about how ecological factors influence recognizable conduct.
Answer:
Predictive validity.
Explanation:
A Predictive validity test is the test that is taken to predict the future performance of the applicant based on the scores in the test. The test is useful in predicting the future, as suggested by the name.
The tests that are taken before allowing a person in any organisation are often predictive. A pre-employment test is such example.
<u>In the given case, the entrance exams are also an example of predictive validity. It is because based on the scores scored by a student will help the university authorities about the performance of the student</u>.
So, the correct answer is predictive validity.