Which statement is true about the energy of electromagnetic radiation? A.the frequency of the emmited radiation is inversely proportional to its energy. B.the frequency of the emitted radiation is directly proportional to its energy C.the wavelength of the emitted radiation is directly proportional to its energy. D.the amplitude of the emitted radiation is inversely proportional to its energy.

Answers

Answer 1

Answer: The frequency of the emitted radiation is directly proportional to its energy

Answer 2

Answer:

Answer: Option (B) is the correct answer.

Explanation:

The radiation in which waves of electromagnetic field travel or propagate through the space and carries electromagnetic radient energy is known as electromagnetic radiation.

The relation between energy and frequency is as follows.

$E = h \nu$ ............ (1)

where, E = energy

h = plank's constant

$\nu$ = frequency

Therefore, the frequency of the emitted radiation is directly proportional to its energy.

Also, frequency is proportional to c over wavelength. The relation is as follows.

$\nu = (c)/(\lambda)$ ........ (2)

where, $\nu$ = frequency

c = speed of light

$\lambda$ = wavelength

Placing the value of frequency from equation (2) to equation (1) as follows.

$E = (hc)/(\lambda)$

Thus, the wavelength of the emitted radiation is inversely proportional to its energy.

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Compare the characteristics of 4d orbitals and 3d orbitals and compared the following sentences. Check all that apply4d orbitals would __________ than 3d orbitals

a. be a closer to the nucleus
b. be larger in size
c. hold more elections
d.have different shapes
e.have more nodes

Answers

Answer:

The $4d$ orbitalswolud be larger in size and have more nodes than $3d$ orbitals.

Explanation:

Given: $4d$ orbitals would __________ than $3d$ orbitals.

Since, the distance between nucleus and orbital increases when we electrons moves away fro m one orbital to another orbital.

So, The $4d$ orbitals is far from the nucleus as compared with $3d$ orbitals.

Therefore, The $4d$ orbitals wolud be larger in size than $3d$ orbitals.

Now, finding the number of nodes of an orbital is calculated as $n-1\; \rm\{{where}, n \;is\; priniciple \; quantum \;number\}$

Then, number of orbital in $4d\;\;\rm{is}\; 4-1=3$ .

And number of orbital in $3d\;\;\rm{is}\; 3-1=2$ .

Therefore, $4d$ orbitals wolud have more nodes than $3d$ orbitals.

Learn more about Orbitals here:

brainly.com/question/1482725?referrer=searchResults

Answer :

(b) 4d orbitals would be larger in size than 3d orbitals

(e) 4d orbitals would have more nodes than 3d orbitals

Explanation :

As we move away from one orbital to another, the distance between nucleus and orbital increases. So, 4d orbitals would be far to the nucleus than 3d orbitals.

Hence, 4d orbitals would be larger in size than 3d orbitals.

Number of nodes is any orbital is n - 1 where, n is principal quantum number.

So, number of orbital in 4d is 3.

And number of orbital in 3d is 2.

So, options (b) and (e) are correct.

Why are ceiling of concert hall and conference halls made curved?

Answers

The ceiling of a concert hall and conference halls are made curved so that the sound that emanates from the source will reflect to any point of the curve of these halls. Thereby, increasing the sound wave travelled across the hall.

A current of 4A flows in a wire of resistance 60 ohm. calculate electrical energy consumed in 2 min.

Answers

Power dissipated = energy/second= (current)² x (resistance)

Power dissipated = energy / second = (4)² x (60) = 960 joules per second= 960 watts

Energy = (power) x (time) = (960 watts) x (2 minutes) x (60 sec/minute)

= 115,200 joules

What does the ideal gas law allow a scientist to calculate that the other laws do not?a. Number of miles
b. Pressure
c. Energy
d. Volume

Answers

The ideal gas law.
PV=nRT
P=presure
V=volume
n=number of moles
R=Gas costant
T=temperature.

Answer: a. Number of moles.

Answer:

A). number of moles

Explanation:

I took the test. It is correct.

NEED ASAP PLEASE !! Billy drops a water balloon from the roof of his house. Since the balloon began with an original velocity of zero, how far above ground was the balloon dropped if it took 2.5 seconds to hit the ground?

A. 30.6 m
B. 122.5 m
C. 12.3 m
D. 49.0 m

Answers

The formula you want is:

   Distance = (1/2) (gravity) (time)²

   = (1/2) (9.8 m/s²) (2.5 sec)²

   = (4.9 m/s²) (6.25 sec²)

   = 30.6 meters

a motorcycle accelerates from 15 m/s to 20 m/s over a distance of 50 meters. what is its average acceleration?

Answers

For this, you need the v-squared equation, which is v(final)² = v(initial)² + 2aΔxThe averate acceleration is thus a = (v(final)² - v(initial)²) / 2Δx = (20² - 15²) / 2(50) = 175 / 100 = 1.75 m/s²So the average acceleration is 1.75 m/s²

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You are asked to measure the density of a cube that has a side of 10 centimeters, and weighs 1 kg nominally. The tools you have are a ruler with the smallest reading at 1 mm, and a scale with a precision down to 0.1 g. Both tools are calibrated. Please estimate the final error on the density of the object that you measure.

What part of a wave best describes lowest point of a wave?A. the crest point B. the wavelength C. the center point D. the trough point

Which statement best explains the relationship between the electric force between two charged objects and the distance between them?As the distance increases by a factor, the electric force increases by the square of that factor. As the distance increases by a factor, the electric force increases by twice that factor. As the distance increases by a factor, the electric force decreases by twice that factor. As the distance increases by a factor, the electric force decreases by the same factor. As the distance increases by a factor, the electric force decreases by the square of that factor.

A force is applied to a 30-kg object, resulting in an acceleration of 15 m/s. What is the force being applied to the object?