# Wave Nature of Light

Description
school test
Categories
Published

## Download

Please download to get full document.

View again

All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Related Documents
Share
Transcript
Wave nature of lightMC (20 marks) 1. Which of the following graphs correctly shows the variation of speed v againstfrequency f of the electromagnetic waves in vacuum? A.B.C.D.E... !iven that the wavelengths of visi le light range from # \$ 1% &'  m to ' \$ 1% &'  m(which of the following com inations of wavelengths for infrared( red and violetlights is possi le ? )nfrared*ed light +iolet A.1 \$ 1% &#  m' \$ 1% &'  m # \$ 1% &'  mB.1 \$ 1% &'  m' \$ 1% &'  m # \$ 1% &'  mC.1 \$ 1% &#  m# \$ 1% &'  m ' \$ 1% &'  mD.1 \$ 1% &'  m# \$ 1% &'  m ' \$ 1% &'  mE.1 \$ 1% &1%  m # \$ 1% &'  m ' \$ 1% &'  m,. A radio station roadcasts at a frequency of -# /0. !iven that the speed of radiowaves is , \$ 1%   m s &1 ( find the wavelength of the radio waves.A.%.,1m B.,.1- m C. ,1.-1mD.,1-1m E.. \$ 1% 12  m #. Which of the following statements is3are true ? 4156ight is a transverse wave. 456ight does not undergo diffraction. 4,56ight transmits energy. A.45 only B.4,5 only C. 415 and 45 only D.415 and 4,5 only E.415( 45 and 4,5 1  7. Which of the following statements concerning infra&red radiation is correct ? A.)nfra&red is red in colour. B.)nfra&red can e detected y a !eiger&uller counter. C.)nfra&red can e used to sterili0e drin8ing water. D.)nfra&red is a longitudinal wave. E.Warm o 9ects emit infra&red. 2.:art of the electromagnetic spectrum is shown a ove. Which of the following statements is3are correct? 415: is ultra&violet and ; is infra&red. 45<he wavelength of : is shorter than that of ;. 4,5<he speed of : in vacuum is higher than that of ;. A.415 only B. 4,5 only C. 415 and 45 only D.45 and 4,5 only E. 415( 45 and 4,5 '. Which of the following is not an application of the corresponding electromagnetic wave? Electromagnetic wave Application A.=ltra&violetCamera autofocusingB.)nfra&redDetecting survivors uried in landslidesC.icrowaves>atellite communicationD.&raysDetecting weapons hidden in suitcasesE.*adio waves<+ roadcasting. A short pulse of microwaves travelling at , \$ 1%   m3s was used to detect the  position of a stationary weather alloon. )t was found that the microwaves reflected from the alloon were pic8ed up  \$ 1% &#  s after the pulse had een emitted from the station. <he distance of the alloon from the station wasA. 17 8mB. ,% 8mC. 2% 8mD. 1.7 \$ 1%1 mE. ,.% \$ 1%1 m-. )n a dou le slit e\$periment( light of wavelength 2%% nm gave a fringe separation of %.#mm on a suita ly placed screen. )f another source of light is used( while other setups 8ept unchanged( there will e 1% fringes across a distance of ,., mm found on the screen. <he wavelength of the second screen is@ A. #-7 nm B. 77% nmC. 22% nm D. '' nm E. ',%% nm1%. A monochromatic light of wavelength 2%% nm is incident on a grating. <he grating has 7 1%, ×  lines per metre. /ow many right fringes will e seen? A. #B. 7 C. 1%D. 11E. % Structure-tpe !uestion (2 marks)   14a5 4i5)nterference can occur when waves emerge from two sources. >tate two conditions necessary for optical interference to e o served. 4 mar8s54ii5 With the aid of a la elled diagram showing the necessary apparatus( descri ehow the wavelength of monochromatic light can e measured y interference method. E\$plain carefully how the result is o tained from the measurements. 42 mar8s54 5 A parallel eam of light( the spectrum of which contains two prominent lines atwavelengths of #7% nm and 2'7 nm( is incident normally on a ruled grating which has ,%% lines per millimetre.4i5 ind the highest order that the light of wavelength #7% nm that can e o served through the grating. What is the colour of this light wave?4 mar8s54ii5 Certain orders of diffraction of the #7% nm light coincide with certain other orders of the 2'7 nm light. Determine the lowest non&0ero order for each wavelength for which this coincidence occurs.4 mar8s5. 4/CEE --&1%5:eter lives in a house  A  on one side of a hill. A transmitting station T  1  is located at site  P   on the other side of the hill. 4>ee igure 115 <he station transmits radio waves of frequency 2%% 8/0 and <+ waves of frequency 7%% /0.4ote @ 1 /0  1% 2  /0.54a5!iven that the speed of electromagnetic waves is ,\$1%   ms &1 ( find the wavelengths of the radio waves and <+ waves. 4, mar8s54 5 4i5ame the wave phenomenon which ena les the waves transmitted y T  1  to reach :eters house. 41 mar854ii5:eter finds that the radio reception is etter than the <+ reception. E\$plain this phenomenon. 4 mar8s5 ,  4c5:eter is watching <+ in his house. /e finds that the reception is affected when an aeroplane flies overhead. E\$plain this phenomenon. 4 mar8s54d5 Another transmitting station will e uild at site Q . 4>ee igure 11.5 ary lives in a house  B  such that  BP  ,.-7 8m and  BQ  ,.% 8m.4i5ind the path difference at  B  from  P   and Q . 41 mar85F4ii5ary listens to the radio in her house. /ow will the reception e affected if oth stations transmit identical radio waves at 2%%8/0? E\$plain your answer. 4eglect the reflection of waves from the hill.5 4# mar8s54e5 <he following ta le shows the roadcasting frequencies of *</ *adio 1 45 in different districts@Districtrequency3/0/ong ong north-.2/ong ong south-,.2owloon east-#.#owloon west-.->hatin( a Gn >han-,.7<ai :o( anling-,.<uen un (Huen 6ong-,.#>tate one advantage of roadcasting at different frequencies in different districts. 4 mar8s5 #

Jul 23, 2017

#### Vnx Dp Upgrading Disk Firmware

Jul 23, 2017
Search
Similar documents

View more...
Tags

## Waves

Related Search
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks