B.c = fλ
C.c = f + λ
D.c equals f over lambda
Answer:
B. c = fλ
Step-by-step explanation:
Given formula,
f equals c over lambda,
Where, f = frequency,
c = wave speed,
λ = wavelength,
By the above formula,
( By cross multiplication ),
Hence, the required formula for c,
Option 'B' is correct.
Step-by-step explanation:
if f = c/lambda
then c = f × lambda
1 meter.
remember, each 100 cm is equal to one meter. So,200 cm would be 2 meters
Answer: 1 m or 1 meter
Answer: D
Step-by-step explanation:
Paul's Current score is 42, x = paul's awaiting score
Paul's score has to be greater than 174
Current score plus awaiting score must be greater than 174
Answer:
d. 42 + p > 174
Step-by-step explanation:
Since Paul needs to score more than 174, the sign needs to be > and not ≥ because he does not want to equalize the score of 174.
Since he currently has a score of 42, he needs to add another score. Assuming the next score he needs is p,
42 + p is the equation.