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3 years ago

Matter behaving like a wave rather than like a particle is best illustrated by which phenomenon?

1 answer:

8 0

The photoelectric effect is about electrons being ejected from metals when light is shined on metals. The electrons do not behave like waves in the photoelectric effect. Black body radiation is all about the radiation emitted by warm bodies and not about those bodies behaving like waves. The emission spectra of atoms is all about what light is given off by atoms when electrons in those atoms jump down to lower energy levels from higher levels. That also has nothing to do with matter behaving as a wave. Interference is classically defined as the generation of a new wave with an amplitude modulated according to the waves that interfere to form that new wave. Note its emphasis on the wave part.

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In order to do work, the force vector must be

gregori [183]

As we know that total work done by a force is given by

$W = F.d$

$W = Fdcos\theta$

so it is product of force and displacement along same direction

as we can write it as

$W = (Fcos\theta)(d)$

so it must be the product of force and displacement in same directions so correct answer must be

B. in the same direction as the displacement vector and the motion.

6 0

3 years ago

Read 2 more answers

Where is UTC the local time?

Dmitrij [34]

UTC is generally adopted as the local time at Prime Meridian (PM).

UTC is an abbreviation for Coordinated Universal Time and it can be defined as a local time standard by which all clocks, time and time zones are regulated around the world.

This ultimately implies that, Coordinated Universal Time (UTC) is generally adopted as the local time at Prime Meridian (PM) because it nominally reflects mean solar time.

Read more on UTC here: brainly.com/question/14333785

#SPJ12

5 0

1 year ago

Would anyone be kind enough to help me? :)

Travka [436]

Answer:

The racetrack is 996.7 meters long

Explanation:

Convert 251km/h to km/s (kilometers per second)

3600 seconds in an hour, so:

251/3600 = 0.0697km/s

Convert km/s to m/s (meters per second)

1000 meters in a kilometer, so:

0.0697*1000 = 69.7m/s

Find length of racetrack:

69.7m/s*14.3s = 996.7m

If the racer travels 69.7 meters in one second and it takes 14.3 seconds to complete a lap, the racetrack is 996.7 meters long.

6 0

2 years ago

What does letter h mean in physics??

Goryan [66]

The photon energy is the light frequency times Planck's constant. ... Planck's constant is usually called "h". Its value is about 6.626*10^-34 Joules/ Hz. A Joule is a unit of energy, and a Hertz is a unit of frequency, so when you multiply a frequency by h you get an energy.

4 0

3 years ago

Read 2 more answers

A sodium vapor lamp operates by using electricity to excite the highest-energy electron to the next highest-energy level. light

viva [34]

Answer:

The energy levels are: 3s and 3p

Explanation:

The sodium (Na) element, with atomic number 11 (number of protons: Z=11), has the next electronic configuration:

Z=11: 1s² 2s² 2p⁶ 3s¹ = [Ne] 3s¹

Hence, the electricity used in a sodium vapor lamp will excite the electron of the energy state n=3 from the s-orbital to the next highest energy p-orbital which then drops back to the lower energy s-orbital by the emission of a photon resulting in the production of light.

The transition of the electron is:

Excitation: [Ne] 3s¹ → [Ne] 3s⁰ 3p¹

Emission: [Ne] 3p¹ → [Ne] 3s¹

So, the energy levels that are involved in the process are 3s and 3p.

Have a nice day!

3 0

3 years ago