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
Elenna [48]
2 years ago
15

The objective lens in a microscope with a 17.0 cm long tube has a magnification of -50.0 and the eyepiece has a magnification of

20.0. (a) What is the focal length of the objective? (b) What is the focal length of the eyepiece?
Physics
1 answer:
Bas_tet [7]2 years ago
5 0

Answer:

(a) 0.34 cm

(b) 1.32 cm

Explanation:

Given that, m_{o}=-50

m_{e}=20 cm

And the length of objective lens in a microscope

L=17

And we have d of the eyepiece is 25 cm.

(a) Focal length of the objective is,

f_{o}=-\frac{L}{m_{o} }\\  f_{o}=-\frac{17}{-50} \\f_{o}=0.34 cm

Therefore, objective lens's focal length is 0.34 cm.

(b) Focal length of an eyepiece,

m_{e}=(1+\frac{d}{f_{e} })\\  20=(1+\frac{25}{f_{e} }\\ f_{e}=\frac{25}{19}cm\\ f_{e}=1.32cm

Therefore, eyepiece's focal length is 1.32 cm.

You might be interested in
Before a rifle is fired, the linear momentum of the bullet-rifle system is zero.
marusya05 [52]

Hi there!

II. Linear momentum of the system is zero.

This is an example of a RECOIL collision. With the Law of Conservation of Momentum, momentum remains constant before and after the collision.

Thus, the total momentum would also be equivalent to zero after the collision.

3 0
2 years ago
HELP HELP HELP HELP HELPPPPPPPPPPP
Firdavs [7]

Initial velocity (u) = 2 m/s

Acceleration (a) = 10 m/s^2

Time taken (t) = 4 s

Let the final velocity be v.

By using the equation,

v = u + at, we get

or, v = 2 + 10 × 4

or, v = 2 + 40

or, v = 42

The final velocity is 42 m/s.

5 0
2 years ago
Read 2 more answers
What are examples of a solution in solids, liquids, and gases
Nina [5.8K]

Answer:

Solid: metal alloy

Liquid: beer

Gas: Air

Explanation:

A solution is a type of mixture where the solvent and solute are homogeneously mixed. Homogeneous mixture means that the solute shouldn't be able to be seen with the naked eye, filtered and stable enough.  

Metal alloy will be an example of a solution in solid-state. Beer is a solution made of liquid alcohol and liquid water. Air mostly composed of nitrogen, but it has oxygen, carbon dioxide, and many other substances in gaseous form.

3 0
3 years ago
The nucleus contains protons and neutrons. Being positively charged, the protons repel each other. The nucleus should fly apart
Arte-miy333 [17]

this is due to the existence of other forces called the strong nuclear forces that overcomes the repulsion forces between the protons and keeps the nucleons holding to each other also there is a type of energy that is called the nuclear binding energy and this energy also works on binding the components of the nucleus together

6 0
3 years ago
What are two ways in which ultrasound technology produces images
arsen [322]
Fetal and ophthalmic
6 0
3 years ago
Other questions:
  • Which of these types of organisms is there more of on Earth? A. goat B. human C. dandelion D. bacterium
    10·1 answer
  • How do Swati and Banks adjust their body position during a skydiving jump so they can fall at the same rate?
    13·1 answer
  • A horizontal spring is attached to a wall at one end and a mass at the other. The mass rests on a frictionless surface. You pull
    5·1 answer
  • "A window washer pulls herself upward using the bucket-pulley apparatus. The mass of the person plus the bucket is 65 kg.
    7·2 answers
  • Why don't ring particles form a moon? a. They collide too violently to accrete into a moon. b. Tidal forces from moons prevent t
    14·1 answer
  • 2. What is equal to the kinetic energy of a car with a mass of 0.5t (tonne) if it travels
    6·1 answer
  • The number 0.00325 × 10-8 cm can be expressed in millimeters as A) 3.25 × 10-11 mm. B) 3.25 × 10-10 mm. C) 3.25 × 10-12 mm. D) 3
    10·1 answer
  • At which position is the kinetic energy of a particle executing SHM greatest?
    13·1 answer
  • Will give brainliest.... Physics with work please
    13·1 answer
  • A net force of 2070N acts on a car with a mass of 1350 kg. What is the acceleration of the car?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!