This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The objective and the eyepiece of a refracting astronomical telescope have focal lengths of 320 cm ... (Read 60 times)

MirandaLo

  • Hero Member
  • *****
  • Posts: 538
on: Jul 29, 2018
The objective and the eyepiece of a refracting astronomical telescope have focal lengths of 320 cm and 4.0 cm, respectively.
 
  The telescope is used to view Neptune and the final image is set at infinity. The diameter of Neptune is 4.96  107 m, and its distance from Earth at the time of observation is 4.4  1012 m. What is the angle (in milliradians) subtended by the final telescopic image of Neptune?
  A) 0.90 mrad
  B) 1.1 mrad
  C) 1.3 mrad
  D) 1.5 mrad
  E) 1.7 mrad

Question 2

Atomic nuclei that are all isotopes of an element all have the same
 
  A) number of nucleons.
  B) mass.
  C) number of protons.
  D) number of neutrons.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


MirandaLo

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 29, 2018
Thank you!


macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Sun Telescope Sun Telescope
Does this child have legs of different lengths or scoliosis? Look at the level of the iliac crests a Does this child have legs of different lengths or scoliosis? Look at the level of the iliac crests a
A Radio Telescope in Green Bank, West Virginia A Radio Telescope in Green Bank, West Virginia
The 300-meter Radio Telescope at Arecibo, Puerto Rico The 300-meter Radio Telescope at Arecibo, Puerto Rico
Telescope Telescope
Telescope Telescope
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library