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
Gala2k [10]
3 years ago
11

The normal is a line perpendicular to the reflecting surface at the point of incidence.

Physics
1 answer:
ladessa [460]3 years ago
4 0

Answer:

True

Explanation:

The normal line is defined as the line which is perpendicular to the reflecting surface at the point where the incident ray meet with the reflecting surface.

The angle of incident is defined as the angle which is subtended by the incident ray with respect to the normal ray by consider the normal ray as the base line and angle is measured from the point where incident ray is incident on the reflecting surface of the mirror.

Similarly reflecting ray can be defined as the ray which is reflected after the incident of a ray and the angle subtended by the reflecting ray is measure with respect to normal ray by considering normal ray as a base line.

Therefore, the normal ray is the perpendicular line to the reflecting surface at the point of incidence.

You might be interested in
Incident rays parallel to the principle axis of a concave mirror will reflect _____. parallel to the principle axis through the
Svetradugi [14.3K]
I’m not sure if its correct but I think it’s focal Ray point


For concave mirrors, some generalizations can be made to simplify ray construction. They are: An incident ray traveling parallel to the principal axis will reflect and pass through the focal point. An incident ray traveling through the focal point will reflect and travel parallel to the principal axis.
8 0
4 years ago
Read 2 more answers
A lamp is 10% efficient.How much electrical energy must be supplied to the lamp each second if it produces 20 J of light energy
k0ka [10]

If it produces 20J of light energy in a second, then that 20J is the 10% of the supply that becomes useful output.

20 J/s = 10% of Supply

20 J/s = (0.1) x (Supply)

Divide each side by 0.1:

Supply = (20 J/s) / (0.1)

<em>Supply = 200 J/s  </em>(200 watts)

========================

Here's something to think about:  What could you do to make the lamp more efficient ?  Answer:  Use it for a heater !

If you use it for a heater, then the HEAT is the 'useful' part, and the light is the part that you really don't care about.  Suddenly ... bada-boom ... the lamp is 90% efficient !

6 0
4 years ago
Calculate the acceleration due to gravity at a point 1000km above the surface of the earth?
klio [65]

Answer:

g' = 6.74 m/s²

Explanation:

R = 6400km

h = 1000km

g = 9.81m/s

g' = g(1 - 2h/R)

Goodluck

3 0
4 years ago
A bike that is coasting down a steep hill increases its speed from 8.0 m/s to 14 m/s. The length of the hill is 55 meters. How m
masya89 [10]

t=5s

it was correct on my do-now

so I hope it was useful for you

8 0
3 years ago
Read 2 more answers
All science-related careers involve working in a laboratory True Or False
RideAnS [48]
The  correct answer is false. 
7 0
4 years ago
Read 2 more answers
Other questions:
  • How do nerves tie the other parts of the nervous system together?
    11·1 answer
  • A type of Lead (Pb) ion has a + 4 oxidation number. Sulfur (S) has a — 2 oxidation number. What would be the chemical formula fo
    9·1 answer
  • Model rocket A is launched at an angle of 70° above the x axis, with an initial velocity of 40 m/s. An identical rocket B is lau
    6·1 answer
  • What is the velocity of the car, in meters per second, just after it hits a 135-kg deer initially running at 10.5 m/s in the sam
    8·1 answer
  • 10. A person with a mass of 15 kg is walking uphill at a velocity of 2 m/s. What is the walker's momentum?
    7·1 answer
  • A little boy is standing at the edge of a cliff 1000 m high. He throws a ball straight downward at an initial speed of 20 m/s, a
    9·1 answer
  • Where on the table would a group’s ionization energy be the greatest?
    6·1 answer
  • Identify whether the following statements describe a change in acceleration. Explain your response answer them all plz
    7·2 answers
  • 35 points! Will give brainliest!
    10·1 answer
  • House current is 120 volts. If a light bulb runs a current of 10 amps, what is the resistance?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!