Answer:
Just 3
Explanation:
I believe the other two are incorrect
Answer:a) λ = 4.862 10⁻⁷ m, b) λ = 4.341 10⁻⁷ m
Explanation:
The spectrum of hydrogen can be described by the expression
in the case of the initial state n = 2 this series is the Balmer series
a) Find the wavelength for n = 4
let's calculate
= 1,097 10⁷ ()
\frac{1}{ \lambda} = 1.097 10⁷ 0.1875 = 0.2056 10⁷
λ = 4.862 10⁻⁷ m
b) n = 5
\frac{1}{ \lambda} = 1,097 10⁷ ()
\frac{1}{ \lambda} = 1.097 10⁷ 0.21 = 0.23037 10⁷
λ = 4.341 10⁻⁷ m
Answer:
It won't stop
Explanation:
If it is a frictionless surface ....the block will not stop until another force acts on it
Answer:
Explanation:
Position of the ball as a function of time is given as
now we know that when ball will attain maximum height then the differentiation of the position with respect to time will become zero
so we have
now the maximum height is given as
Answer:
Explanation:
Average power per unit area =
I avg = c B₀² / 2μ₀
= 3 X 10⁸ X (3.2 X 10⁻⁷)² / 2 X 4π × 10⁻⁷
= 1.22 X 10
12 . 2 W / m²
