All categories

3 years ago

What is photoelectric effect

Physics

2 answers:

natima [27]3 years ago

5 0

${\underbrace{\sf{PHOTO-ELECTRIC~EFFECT }}}$

The photoelectric effect is a phenomenon in which electrons are ejected from the surface of a metal when light is incident on it. These ejected electrons are called photoelectrons. It is important to note that the emission of photoelectrons and the kinetic energy of the ejected photoelectrons is dependent on the frequency of the light that is incident on the metal’s surface.

kap26 [50]3 years ago

3 0

Answer:

Photoelectric effect is the phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.

You might be interested in

For for each situation say how the ideas of force pressure and area can be applied :

fomenos

<h3 /><h3><u><em>Solution-:</em></u></h3><h3><u><em>more force as expansion is much</em></u></h3>

<u><em>also, less force area is much</em></u>

<h3> mark me Brainliest</h3>

4 0

2 years ago

What method of separation would work best on a homogeneous mixture salt water?

Lera25 [3.4K]

The appropriate answer is c. evaporation. Evaporation is the process by which a liquid changes to a gas and in this case is the best way to remove the water from the homogenous mixture. The reaction can be sped up by heating the mixture. All the water will eventually evaporate leaving behind the sodium chloride crystals as a precipitate.
Filtration works best on mixtures that have precipitates and distillation is for separating liquids with different boiling points.

5 0

4 years ago

Read 2 more answers

A formula for the normal systolic blood pressure for a man age a , measured in mmhg, is given as p=0. 006a2−0. 02a 120. Find the

djyliett [7]

The age of a man whose normal blood pressure measures 123 mm of hg

9 years

<h3>What is Quadratic equation ?</h3>

A quadratic equation as an equation of degree 2, meaning that the highest exponent of this function is 2. The standard form of a quadratic equation is y = a $x^{2}$ + bx + c, where a, b, and c are numbers and a cannot be 0

P(A) = 0.006 $a^{2}$ - 0.02a + 120

123 = 0.006- 0.02a + 120

0=0.006 $a^{2}$ - 0.02a - 3

you can use the quadratic equation formula to solve for the man's age.

A = (-b ± ( $\sqrt{b^{2} - 4*a*c}$ ) ) / (2a)

A = (0.02 ± $\sqrt{(-0.02)^{2} - 4*0.006*(-3)}$ / (2*0.006)

A = (0.02 ± $\sqrt{0.0076}$ ) / 0.012

A = 9 , -5.67

Age of the man will be 9 years

To learn more about quadratic equation here

brainly.com/question/17177510?referrer=searchResults

#SPJ4

5 0

2 years ago

Which object, A, B, or C would experience the least pull of gravity exerted from the planet? Please use Newton's law to help exp

Assoli18 [71]

What Is the Hubble Space Telescope?
The Hubble Space Telescope is a large telescope in space. NASA launched Hubble in 1990. Hubble is as long as a large school bus. It weighs as much as two adult elephants. Hubble travels around Earth at about 5 miles per second. That is as fast as driving a car from the East Coast of the United States to the West Coast in 10 minutes.

Hubble faces toward space. It takes pictures of planets, stars and galaxies. Hubble has seen stars being born. Hubble has seen stars die. It has seen galaxies that are trillions of miles away. Hubble also has seen comet pieces crash into the gases above Jupiter.

Scientists have learned a lot about space from Hubble pictures. The pictures are beautiful to look at too.

What Makes Hubble Different From Telescopes on Earth?
The mixture of gases that surround a planet is called its atmosphere. Earth's atmosphere changes and blocks some of the light that comes from space. Hubble flies around, or orbits, high above Earth and its atmosphere. So, Hubble can see space better than telescopes on Earth can. Hubble is not the kind of telescope that you look through with your eye. Hubble uses a digital camera. It takes pictures like a cell phone. Then Hubble uses radio waves to send the pictures through the air back to Earth.

Where Did the Name Hubble Come From?
Hubble is named after Edwin P. Hubble. He was an astronomer. An astronomer is a scientist who studies the planets, stars and space. Edwin P. Hubble made important discoveries about the universe in the early 1900s.

What Is NASA Learning From the Hubble Space Telescope?
Hubble has helped scientists learn about our solar system. The telescope observes comets and planets. Hubble even discovered moons around Pluto that had not been seen before. The telescope has helped scientists understand how planets and galaxies form. Galaxies contain billions of stars. A picture called "Hubble Ultra Deep Field" shows some of the farthest galaxies ever seen. Pictures from Hubble help scientists learn more about the whole universe. Because of Hubble pictures, scientists think the universe is almost 14 billion years old.

Hubble has spotted black holes. Black holes suck in everything around them. They even suck in light. And Hubble has helped scientists learn more about explosions that happen when huge stars burn out.

What Is the Future for Hubble?
In 2009, astronauts flew to Hubble on the space shuttle. This was the fifth time astronauts went to Hubble. They went to fix parts. They also put new parts and cameras in the telescope. So it is working very well. Hubble will not be fixed again. In 2015, Hubble turned 25 years old. It still takes beautiful pictures of objects in space.

NASA is building another space telescope. It is called the James Webb Space Telescope. It will be bigger than Hubble. Webb will not orbit Earth as Hubble does. Webb will orbit the sun in a spot on the other side of the moon. The Webb telescope will be able to see a different kind of light than the light Hubble sees. Webb will help NASA see even more of the universe.

7 0

3 years ago

Calculate the average speed of talias car during the trip

lina2011 [118]

Answer:

We're no strangers to love

You know the rules and so do I

A full commitment's what I'm thinking of

You wouldn't get this from any other guy

I just wanna tell you how I'm feeling

Gotta make you understand

Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

Never gonna say goodbye

Never gonna tell a lie and hurt you

We've known each other for so long

Your heart's been aching but you're too shy to say it

Inside we both know what's been going on

We know the game and we're gonna play it

And if you ask me how I'm feeling

Don't tell me you're too blind to see

Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

Never gonna say goodbye

Never gonna tell a lie and hurt you

No, I'm never gonna give you up

No, I'm never gonna let you down

No, I'll never run around and hurt you

Never, ever desert you

We've known each other for so long

Your heart's been aching but

Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

Never gonna say goodbye

Never gonna tell a lie and hurt you

No, I'm never gonna give you up

No, I'm never gonna let you down

No, I'll never run around and hurt you

I'll never, ever desert you

Explanation:

RICK ROLLED

8 0

4 years ago

What is photoelectric effect​

What is photoelectric effect