<span>Move electrons from the inner shell to the outer shell
</span>
Answer: 4
Explanation:
when energy is greater then frequency should increase and wavelength should decrease.
Therefore answer is 4
Answer:
(a) 4 rad/s^2
(b) 18 rad
Explanation:
w0 = 0, w = 12 rad/s, t = 3 s
(a) Let α be the angular acceleration.
w = w0 + α t
12 = 0 + 3 α
α = 4 rad/s^2
(b) Let θ be the angle rotated
θ = w0 t + 1/2 α t^2
θ = 0 + 0.5 x 4 x 9
θ = 18 rad
Answer:
The focal length for given convex lens = 0.0714 m
Explanation:
Given data
Radius (
) = 12.5 cm
Radius (
) = 16.7 cm
Since the radius of curvature is positive so these are the convex lens.
Now focal length is given by
⇒
=
+ ![\frac{1}{R_{2} }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BR_%7B2%7D%20%7D)
⇒ Put the values of
and
in the above formula we get,
⇒
=
+ ![\frac{1}{16.7}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B16.7%7D)
⇒
= 0.13988
⇒ f = ![\frac{1}{0.13988}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B0.13988%7D)
⇒ f = 7.14 cm
⇒ f = 0.0714 m
Thus the focal length for given convex lens = 0.0714 m