Answer:
Part a)

Part b)

Part c)

Explanation:
Part a)
As we know that the speed of light is given as


now the frequency of the light is given as

so we have


Part b)
Position of Nth maximum intensity on the screen is given as

so here we know for 3rd order maximum intensity

n = 3
L = 1.4 m


Part c)
angle of third order maximum is given as



Its A The paper clip is repelled away from the nail because an electromagnetic field magnetized to the nail
Answer:
Explanation:
Total tension must support the weight of the child and provide the necessary centripetal force.
2T = m(g + v²/R)
2(414) = 35.0(9.81 + v²/3.02)
828 = 35.0(9.81 + v²/3.02)
23.65 = 9.81 + v²/3.02
13.847 = v²/3.02
41.81 = v²
v = 6.47 m/s
F = 2(414) = 828 N (ignoring the weight of the chains and seat)
If this pendulum is situated in an elevator that is moving upward at a speed of 9.00 m/s2, the period of its minor oscillations is 4.34s.
<h3>One oscillation is it a period?</h3>
Period is equal to the length of one oscillation.
T. T . The frequency is the number of oscillations that occur in one second.
<h3>Short answer: How long does a pendulum swing?</h3>
A simple pendulum's period is: The symbol "T" stands for the period of time needed by the pendulum to complete one complete oscillation. The length of a basic pendulum: It is described as the distance the pendulum moves away from equilibrium and toward one side.
Since the elevator's oscillations for this pendulum are situated there and it is climbing at a 9.0 mph,
use G = 9.8 + 9.0 = 18.8 m/s²
Period T=2π√(L/G)
T= 2π√(9/18.8)
T=4.34s
To know more about oscillation visit:-
brainly.com/question/29273618
#SPJ4