Answer:
A
B
Explanation:
From the question we are told that
The wavelength is
The angle of first bright fringe is
The order of the fringe considered is n =1
Generally the condition for constructive interference is
=>
=>
Converting to cm
Generally the number of grating pre centimeter is mathematically represented as
=>
=>
Considering question B
From the question we are told that
The first wavelength is
The second wavelength is
The order of the fringe is
The grating is
Generally the slit width is mathematically represented as
=>
=>
Generally the condition for constructive interference for the first ray is mathematically represented as
=>
=>
=>
Generally the condition for constructive interference for the second ray is mathematically represented as
=>
=>
=>
Generally the angular separation is mathematically represented as
=>
=>
Answer:
Explanation:
Since the temperature difference between inner and outside temperature remains constant , condition of steady state has been achieved . So heat produced is equal to heat leaked
heat leaked = heat produced
heat produced = 54 kwh = 54 x 1000 x 60 x 60 J
time taken = 3 x 60 x 60 s
heat produced per second
= 54 x 1000 x 60 x 60 / 3 x 60 x 60
= 18000 J /s
heat leaked = 18000 J /s
Based on Newton's Law, the event is not fair because:
<span>No, because a basketball is bigger than a baseball, and objects that are bigger accelerate slower.
I hope my answer has come to your help. God bless and have a nice day ahead!</span>
Here we can say that net speed against the wind is given by
also if it is moving along the direction of wind we will have
now add the above two equations we will have
also we can say