Radiation has the smallest frequency-wave velocity | Homework Helpers

1- wave velocity is related to
a- period b-wavelength c-amplitude d-all of these
2- wave amplitude is related to
a- wave velocity b- frequency c- energy d-wave length
3-which of the following radiation has the smallest frequency?
a- infrared b- visible c- ultraviolet d-x-rays
4-light can travel to the earth from a distant star but soundcannot.why is it?
a- light is an electromagnetic wave and sound requires amedium
b- the sun does not make sound
c- light is a longitudinal wave and sound is a transversewave
d-the statement is false both will travel in empty space
5- resonance occurs when
a- two different objects vibrate with different frequencies
b- two different objects produce beats
c- an object having certain natural frequency is set invibration by second object vibrating at that frequency.
d- an object produces a sound.
6- when oscillator is driven in resonance,
a- there are no standing waves
b-all natural frequencies are present
c- there is maximum energy transfer
d- any driving frequency may be used.
7-imags of objects are formed by lenses because of
a- refraction b-diffraction c-internal reflectn d-all ofthese
8- complete destructive interference occurs for two waves ofthe same amplitude and frequency when the waves are out of phaseby:
a- zero degree
b- 90 degrees
c- 180 degrees
d-360 degrees
9-what is the wavelength in meters of radio waves produced bya radio station with a frequency of 1400 KHz?
a- 2.1 X 10^7 m
b-2.1 X 10 ^12m
c- 4.23 X 10 ^14
d- 2.1 X 10^2m
10- what is the frequency in hertz of a sound wave( v=340 m/s)with wavelength of 0.20m?
a- 1.7 X 10^3 Hz
b- 17 X 10^3 Hz
c- 1.7 X 10^2
d- 68Hz
11- a series of ocean waves each 6.0m from crest tocrest moving past an observer at a rate of 2.0 waves per second haswhat speed?
a-3 m/s   b- 12 m/s   c- 33 m/s d- 720m/s
12- how many times greater is the speed of red light(700nm)than the speed of violet light(400nm) in a vacuum?
a- 12,100 nm    b- 300 nm   c- 175times   d- both have the same speed
13- how many times faster is the speed of light invacuum than the speed of sound in air?
a- 10^6 times
b- 10^ -6 times
c- 300 X 10^6 times
d- 300 times

14- the speed of light in diamond is 1.24 X 10^8 m/s. whatis the index of refraction of diamond?
a- 2.42 b-242 c- 0.41 d- 1.24
15- a particular material has an index of refraction of1.25. what percent of the speed of light in vacuum is the speed oflight in the material?
a- 125 %
b- 8%
c- 12.5 %
d- 80 %
16- an object is placed 8cm from a converging spherical lens.The general characteristics of the image for a lens witha focal length of f=12 cm.
a- real, inverted, and enlarged
b- virtual, upright, and enlarged
c- virtual, inverted and smaller
d- real , upright and smaller

Don't use plagiarized sources. Get Your Custom Essay on
Radiation has the smallest frequency-wave velocity | Homework Helpers
Get an essay WRITTEN FOR YOU, Plagiarism free, and by an EXPERT!
Order Essay

17- a simple magnifying glass has a focal length of 6.0cm.an object is placed 4.0 cm from it. Give the characteristics of theimage.

a-      virtual, inverted andsmaller
b-     real, inverted and enlarged
c-      virtual, upright and enlarged
d-     real, upright and smaller

Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose Us

Top quality papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional academic writers

We have hired a team of professional writers experienced in academic and business writing. Most of them are native speakers and PhD holders able to take care of any assignment you need help with.

Free revisions

If you feel that we missed something, send the order for a free revision. You will have 10 days to send the order for revision after you receive the final paper. You can either do it on your own after signing in to your personal account or by contacting our support.

On-time delivery

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & confidential

We use several checkers to make sure that all papers you receive are plagiarism-free. Our editors carefully go through all in-text citations. We also promise full confidentiality in all our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.


Essay Writing Service

You are welcome to choose your academic level and the type of your paper. Our academic experts will gladly help you with essays, case studies, research papers and other assignments.


Admission help & business writing

You can be positive that we will be here 24/7 to help you get accepted to the Master’s program at the TOP-universities or help you get a well-paid position.


Editing your paper

Our academic writers and editors will help you submit a well-structured and organized paper just on time. We will ensure that your final paper is of the highest quality and absolutely free of mistakes.


Revising your paper

Our academic writers and editors will help you with unlimited number of revisions in case you need any customization of your academic papers