1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aev [14]
3 years ago
8

Which type of electromagnetic radiation cannot be focused?

Physics
2 answers:
Irina18 [472]3 years ago
7 0
The answer is A. Hope this helps. :)
dalvyx [7]3 years ago
5 0

(A)  Gamma rays

Focussing is a process in which a beam of light is passed and concentrated on the particular point.

Gamma rays are the type of elecromagnetic radiation that cannot of focused. Gamma rays has high frequency and also are quite energetic due to which when the beam of light is passed through it, it becomes too difficult to focus on a particular point as they interacts strongly with the matter and destroys itself. Hence, Gamma rays are not easily focused.

You might be interested in
A bottle lying on the windowsill falls off and takes 4.95 seconds to reach the ground. The distance from the windowsill to the g
Liula [17]
The distance an object falls from rest through gravity is 
                        D  =  (1/2) (g) (t²) 
           Distance  =  (1/2 acceleration of gravity) x (square of the falling time)

We want to see how the time will be affected 
if  ' D ' doesn't change but ' g ' does. 
So I'm going to start by rearranging the equation
to solve for ' t '.                                                      D  =  (1/2) (g) (t²)

Multiply each side by  2 :         2 D  =            g    t²  

Divide each side by ' g ' :      2 D/g =                  t² 

Square root each side:        t = √ (2D/g)

Looking at the equation now, we can see what happens to ' t ' when only ' g ' changes:

  -- ' g ' is in the denominator; so bigger 'g' ==> shorter 't'

                                             and smaller 'g' ==> longer 't' .-- 

They don't change by the same factor, because  1/g  is inside the square root.  So 't' changes the same amount as  √1/g  does.

Gravity on the surface of the moon is roughly  1/6  the value of gravity on the surface of the Earth.

So we expect ' t ' to increase by  √6  =  2.45 times.

It would take the same bottle  (2.45 x 4.95) = 12.12 seconds to roll off the same window sill and fall 120 meters down to the surface of the Moon.
5 0
3 years ago
The resistance is 5 Ω and the amount of electric current is 2 A. This means that the amount of voltage is
Hatshy [7]

Answer:

I=2A

R=5

Explanation:

formula

V=IR

=2x5

Voltage=10 volt

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE

3 0
3 years ago
Which of the following best describes resistance?
kicyunya [14]
B. Impedes the flow of electrons

7 0
3 years ago
A ___ force is not path-dependent and does not change the overall mechanical energy of an object.​
finlep [7]

Answer:

conservative

Explanation:

Nonconservative force is the force that depends on a path, however conservative does not depend on a path and it is not associated with the potential energy. When the work is done by an unconservative force, mechanical energy is added or removed. Friction is the best example for a non-conservative force. When these non-conservative forces are acting, the mechanical energy changes but these are not preserved.

hope this helped!

6 0
3 years ago
Read 2 more answers
Friction is just hot air rubbing off the inevitable force of solid <br> prove me wrong
Lorico [155]

Answer:

friction is when two objects tough with force basically. when an object is rubbed against something. when an object comes in contact with something else. or ig u can call it hot air rubbing off the inevitable force lol that works too , bud

whatever helps u rememeber

3 0
3 years ago
Other questions:
  • Explain in detail what causes tides and give one reason why it is important for humans to monitor tides.
    6·2 answers
  • URGENT!!!! WILL GIVE BRAINLIEST!!!!!! 15 POINTS
    6·2 answers
  • A car moving at 50 km/h skids 15 m with locked brakes. How far will the car skid with locked brakes at 150 km/h
    15·2 answers
  • A certain sound is recorded by a microphone. The same microphone then detects a second sound, which is identical to the first on
    15·1 answer
  • A cargo elevator on Earth (where g = 10 m/s2) lifts 3000 kg upwards by 20 m. 720 kJ of electrical energy is used up in the proce
    11·1 answer
  • Which colors allowed the most electricity to be generated
    10·1 answer
  • as you move from left to right across the electromagnetic spectrum in the image, the wavelength becomes a. longer b. lower c. sh
    13·1 answer
  • A glass rod acquires charge by rubbing silk cloth. The charge on the glass is due to:
    14·2 answers
  • Give a reason, why the bulb is not glowing in the given circuit A. O Closed circuit B. o Complete circuit C. O Incomplete circui
    9·1 answer
  • photon strikes the surface of tungsten and an electron is emitted. what is the maximum possible speed of the electron?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!