All categories

3 years ago

Which of the following is TRUE regarding photoelectric effect from the experimental data?

Physics

1 answer:

Maksim231197 [3]3 years ago

6 0

Answer:

Experiments showed that increasing the light frequency increased the kinetic energy of the photoelectrons, and increasing the light amplitude increased the current.

Explanation:

The photocurrent increases linearly with the intensity of the incident light but is independent of its frequency. The stopping potential increases linearly with the frequency of the incident light but is independent of its intensity.

You might be interested in

What component of fitness should you work on every time you exercise?

Pepsi [2]

Answer:

1.body composition, (2) flexibility, (3) muscular strength, (4) muscular endurance, and (5) cardio respiratory endurance.

Explanation:

8 0

3 years ago

Read 2 more answers

A balloon filled with helium gas has an average density of rhob = 0.27 kg/m3. The density of the air is about rhoa = 1.23 kg/m3.

8_murik_8 [283]

Answer: $34.84 m/s^2$

Explanation:

Given

density of balloon $\rho _{He}=0.27 kg/m^3$

density of air $\rho _a=1.23 kg/m^3$

volume of balloon $V=0.084 m^3$

If balloon is rising then

$F_b-mg=ma$

where $F_b=buoyant\ Force=\rho _a\times V\times g$

$mg=\rho _{He}\times V\times g=weight of gas$

$a=acceleration$

$\rho _a\times V\times g-\rho _{He}\times V\times g=\rho _{He}\times V\times a$

$\rho _a\times g-\rho _{He}\times g=\rho _{He}\times a$

divide by $\rho _{He}$

$\frac{\rho _a}{\rho _{He}}\times g-g=a$

$a=g(\frac{\rho _a}{\rho _{He}}-1)$

$a=g(\frac{1.23}{0.27}-1)$

$a=3.55\times 9.8$

$a=34.84 m/s^2$

3 0

3 years ago

A block of mass 5 kg slides down an inclined plane that has an angle of 10. If the inclined plane has no friction and the block

Westkost [7]

The kinetic energy of the block when it reaches the bottom is 39.2 J.

<h3>Kinetic energy of the block at the bottom</h3>

Apply the principle of conservation of energy.

K.E(bottom) = P.E(top)

P.E(top) = mgh

where;

m is mass of the block
g is acceleration due to gravity
h is the vertical height of fall

P.E(top) = 5 x 9.8 x 0.8

P.E(top) = K.E(bottom) = 39.2 J

Learn more about kinetic energy here: brainly.com/question/25959744

#SPJ1

4 0

2 years ago

Which of the following is the best example of a good hypothesis?

Musya8 [376]

Answer:

Which of the following is the best example of a good hypothesis?

B. A cheetah can run faster than a tiger This Is A good Hypothesis Because You Can Test this With a Experiment

xXxAnimexXx

Have a great day!

4 0

3 years ago

Read 2 more answers

A plano concave lens is one that has a surface that curves inward, making the lens thinner at its center than at its edges. Its

katrin2010 [14]

Answer:

b.) the diverge in incident beam of light

Explanation:

A lens refers to any refracting surface. The manner in which a lens is curved tells whether it is a concave(diverging) lens or a convex (converging) lens.

A convex lens is thicker at the center than at the edges. It makes light to converge at a point.

A concave lens is is thinner at the center than at the edges. It makes light to appear to diverge from a point, hence the answer above.

7 0

3 years ago