Answer:
A
[tex]N = 1340.86 \ slits / cm[/tex]
B
[tex]\theta = 15.7^o[/tex]
Explanation:
From the question we are told that
The wavelength is [tex]\lambda = 650 \ nm = 650 *10^{-9} \ m[/tex]
The angle of first bright fringe is [tex]\theta = 5^o[/tex]
The order of the fringe considered is n =1
Generally the condition for constructive interference is
[tex]dsin (\theta ) = n * \lambda[/tex]
=> [tex]d = \frac{1 * 650 *10^{-9 }}{ sin(5)}[/tex]
=> [tex]d = 7.458 *10^{-6} \ m[/tex]
Converting to cm
[tex]d = 7.458 *10^{-6} \ m = 7.458 *10^{-6} * 100 = 0.0007458 \ cm[/tex]
Generally the number of grating pre centimeter is mathematically represented as
[tex]N = \frac{1}{d}[/tex]
=> [tex]N = \frac{1}{0.0007458}[/tex]
=> [tex]N = 1340.86 \ slits / cm[/tex]
Considering question B
From the question we are told that
The first wavelength is [tex]\lambda_1 = 650 \ nm = 650 *10^{-9} \ m[/tex]
The second wavelength is [tex]\lambda_2 = 429 \ m = 420 *10^{-9 } \ m[/tex]
The order of the fringe is [tex]n = 2[/tex]
The grating is [tex]N = 5000 \ slits / cm[/tex]
Generally the slit width is mathematically represented as
[tex]d = \frac{1}{N }[/tex]
=> [tex]d = \frac{1}{ 5000 }[/tex]
=> [tex]d = 0.0002 \ c m = 2.0 *10^{-6} \ m[/tex]
Generally the condition for constructive interference for the first ray is mathematically represented as
[tex]d sin(\theta_1) = n * \lambda_1[/tex]
=> [tex]\theta_1 = sin^{-1} [\frac{ 2 * \lambda }{d}][/tex]
=> [tex]\theta_1 = sin^{-1} [\frac{ 2 * 650 *10^{-9} }{ 2*10^{-6}}][/tex]
=> [tex]\theta_1 = 40.5 ^o[/tex]
Generally the condition for constructive interference for the second ray is mathematically represented as
[tex]d sin(\theta_2) = n * \lambda_2[/tex]
=> [tex]\theta_2 = sin^{-1} [\frac{ 2 * \lambda_1 }{d}][/tex]
=> [tex]\theta_2 = sin^{-1} [\frac{ 2 * 420 *10^{-9} }{ 2*10^{-6}}][/tex]
=> [tex]\theta_2 = 24.8 ^o[/tex]
Generally the angular separation is mathematically represented as
[tex]\theta = \theta_1 - \theta_1[/tex]
=> [tex]\theta = 42.5^o - 24.8^o[/tex]
=> [tex]\theta = 15.7^o[/tex]
explain an experiment of the phenomenon of rainfall
Unclear/incomplete question. However, I inferred you need an explanation of the phenomenon of rainfall.
Explanation:
Basically, the phenomenon of rainfall follows a natural cycle called the water cycle. What we call 'rainfall' occurs when water condensed (in liquid form) in the atmosphere is made to fall down on the ground as tiny droplets as a result of the forces of gravity.
The water cycle makes rainfall possible:
First, water on the earth's surface is evaporated (or is absorbed into) the atmosphere.Next, it then condensed into liquid form; which later falls to the surface to the ground again. And the process continues. In an open circuit like the picture
A. the light bulb will produce light
B. a resistor controls the flow of current
C. the light bulb will be off
D. current will flow
In an open circuit like the picture the light bulb will be off. So, option (C) is correct.
What is electric circuit?Electric circuit is a way for current to flow through electricity. An electric circuit consists of a source of energy for the charged particles that make up the current, like a battery or generator; sources of current-using equipment, like lamps, electric motors, or computers; and the connecting wires or transmission lines.
Ohm's law and Kirchhoff's rules are two of the fundamental mathematical laws that define how electric circuits function.
In the given diagram, the circuit is open. So, no current passes through it and the light bulb will be off. Hence, option (C) is correct.
Learn more about electric circuit here:
https://brainly.com/question/29032441
#SPJ2
what is mean by combination reaction ?
[tex] \underline{\purple{\large \sf Combination \: reaction :-}} [/tex]
Those reaction in which two or more substances combine to form a one new substance are called Combination reaction
In this reaction, We can add :
Two or more elements can combine to form a compound.Two or more compounds can combine to from a one new compound.An element and a compound can combine to form a new compound.[tex] \underline{\green{\large \sf For\: example :}} [/tex]
[tex] \sf 2H_{2} + O_{2} \: \underrightarrow{Combination} \: 2H_{2}o[/tex]
In this, Hydrogen is an element and Oxygen is another element. Both are combined to form compound 'Hydrogen oxide'. Hydrogen oxide is commonly known as water.
