Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Understanding the basic concepts in optics.

1. Which of the following types of electromagnetic radiation has the greatest energy?
a) X-rays
b) Visible light
c) Infrared radiation
d) gamma-rays
e) Radio

2. Astronomers build optical telescopes on tops of mountains since
a) There is less air to dim the light.
b) The seeing is better.
c) CCDs work better when there is less oxygen in the air.
d) all of the above
e) A and B

3. A nanometer is
a) a unit of resolving power.
b) a unit of energy.
c) a unit of length.
d) a unit of light-gathering power.
e) a unit of mass.

4. The _____ of a telescope is a measure of its ability to show fine detail and depends on the diameter of the objective.
a) Focal length
b) Resolving power
c) Magnifying power
d) light-gathering power
e) Chromatic aberration


5._____ has (have) wavelengths that are shorter than visible light. I. Gamma-rays II. Ultraviolet light III. Infrared radiation IV. X-rays
a) I & II
b) I & IV
c) II & III
d) II, III, & IV
e) I, II, & IV

6. Which types of electromagnetic radiation can be seen from the surface of Earth?
a) Gamma rays and X-rays
b) Infrared and Ultraviolet
c) Visible light and Infrared
d) Infrared light and Radio waves
e) Visible light and Radio waves

7. Why are most modern telescopes reflecting telescopes?
a) Lenses can easily break.
b) CCD cameras only work on reflecting telescopes.
c) Only visible light can be refracted.
d) Mirrors are easier to build.
e) None of the above

8. A typical amateur telescope is 7 inches in diameter, while the telescope we are installing at CSU Stanislaus is 21 inches in diameter. How much more sensitive is the CSU telescope than a typical amateur telescope?
2 times
3 times
6 times
9 times
12 times

9. The temperature of an object from which no heat energy could be extracted is
a) 100 degrees Kelvin
b) 0 degrees Kelvin
c) 100 degrees Centigrade
d) 0 degrees Centigrade
e) 0 degrees Fahrenheit

10. A neutral hydrogen atom consists of
a) One proton.
b) One proton and one electron.
c) One proton, one neutron, and one electron.
d) An isotope and an ion.
e) One proton and one neutron.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M917056

Have any Question? 


Related Questions in Physics

Asignment emtquestion 1the value of eat prho 2phi 40oz

Assignment: EMT Question 1: The value of Eat P(ρ = 2,φ = 40 o ,z = 3) is given as = 100aρ- 200aφ + 300azV/m. Determine the incremental work required to move a20 μC charge a distance of 6μm: a. in the direction of aρ; b. ...

You drop a 281-g silver figure of a polar bear into the

You drop a 281-g silver figure of a polar bear into the 231-g aluminum cup of a well-insulated calorimeter containing 253 g of liquid water at 24.5°C. The bear's initial temperature is 96.3°C. What is the final temperatu ...

1 when the boltzmann approximation is valid for computing

1. When the Boltzmann approximation is valid for computing the electron concentration, is it also valid for computing the hole concentration? Give two examples, one showing the true and the other, the false answer. 2. Th ...

King kong drives his car down the interstate at 25 ms he

King Kong drives his car down the interstate at 25 m/s. He sees a banana peel 500 m ahead. A. How much will king kong need to accelerate if he is to stop before hitting the banana peel? B. How much time will it take King ...

A battery having an emf of 1099 v delivers 83 ma when

A battery having an emf of 10.99 V delivers 83 mA when connected to a 65.4 ? load. Find the internal resistance of the battery. Answer in units of ?.

In a 500km race one runner runs at a steady 110kmh and

In a 5.00km race, one runner runs at a steady 11.0km/h and another runs at 14.1km/h. How long does the faster runner have to wait at the finish line to see the slower runner cross?

A particle moves at varying velocity along a line and s ft

A particle moves at varying velocity along a line and s = f(t) represents the particle's distance from a point as a function of time, t. Sketch a possible graph for f if the average velocity of the particle between t = 2 ...

A ball is tossed into the air from a bridge and its height

A ball is tossed into the air from a bridge, and its height, y (in feet), above the ground t seconds after it is thrown is given by (a) How high above the ground is the bridge? (b) What is the average velocity of the bal ...

1 the two lowest-energy wave functions of the electron bund

1. The two lowest-energy wave functions of the electron bund to the two protons are symmetric and antisymmetric. Sketch and explain why one has a lower energy while the other has a higher energy. 2. An electron is inject ...

A representative volume element dxdydz of a uniformly doped

A representative volume element dxdydz of a uniformly doped n-type silicon crystal contains 100 substitutional phosphorus donors distributed on the superlattice so there is no local fluctuation of positions. Which of the ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro