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Can Anyone Help Me With The Solution To This Mathematics Question? by Veezybaba: 6:49pm On Jul 12, 2020 |
A security halogen beam light forms a circle of radius 12cm on the wall fence 60cm away. Calculate the slant length of the beam and divergent angle from the source of the light. 1 Like |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by dejt4u(m): 7:06pm On Jul 12, 2020 |
Veezybaba:Slant length is the hypotenuse = √(60²+12²) = 61.19 cm Tan θ = opp ÷ adj Tan θ = 12 ÷ 60 θ = 11.31° Angle of divergence is 2 times θ = 2 × 11.31° = 22.62° 3 Likes |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by dejt4u(m): 7:09pm On Jul 12, 2020 |
In physics perspective, Huygens principle will be deployed as the beam diameter can not be well defined. Therefore we use 1/e² beam diameter (i.e the diameter/radius that encompasses 86.5% of the beam) 1 Like |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by Veezybaba: 7:23pm On Jul 12, 2020 |
you're correct bros. Thank you very much. |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by Veezybaba: 7:26pm On Jul 12, 2020 |
dejt4u:Huygens principle?? please can you enlighten me on this? Is it o'level physics? |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by kumarstudy: 7:26pm On Jul 12, 2020 |
dejt4u:Thanks for sharing your great information with us you can also check about www.kumarstudy.com/2020/07/how-to-study-science.html https://www.kumarstudy.com/2020/06/about-population-inversion-in-laser.html https://www.kumarstudy.com/2020/06/imperfections-in-crystals-types-of.html https://www.kumarstudy.com/2020/06/imperfections-in-crystals-types-of.html
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Re: Can Anyone Help Me With The Solution To This Mathematics Question? by Veezybaba: 7:44pm On Jul 12, 2020 |
kumarstudy:what's on your site has nothing to do with the question above sir. Thank you. |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by ikennamadu1(m): 8:33pm On Jul 12, 2020 |
dejt4u: Wisdom
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Re: Can Anyone Help Me With The Solution To This Mathematics Question? by dejt4u(m): 8:44pm On Jul 12, 2020 |
Veezybaba:yes, it is O'level physics under waves. The principle talks about secondary waves (wavelets). |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by dejt4u(m): 8:46pm On Jul 12, 2020 |
kumarstudy:Thanks. This will surely help a lot. I have an exam I am preparing for on laser and other applications of non-ionizing EM radiations (radio waves, microwaves, infrared, etc). |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by dejt4u(m): 8:50pm On Jul 12, 2020 |
kumarstudy:I've gone through the articles and they're not really helpful. They are not comprehensive at all especially the one on population inversion (energy pump). |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by WAECMATHEMATICS: 9:54pm On Jul 12, 2020 |
dejt4u: Huygens' Principle is not an O' Level topic in Physics. It comes under A- Level. In Cambridge curriculum, it comes under AS Level. Well done for the calculation! Kudos! 1 Like |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by dejt4u(m): 10:00pm On Jul 12, 2020 |
WAECMATHEMATICS:alright. Thanks for the correction 2 Likes |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by phemmyfour: 6:45am On Jul 13, 2020 |
Veezybaba:Hint: use Pythagoras 1 Like |
Re: Can Anyone Help Me With The Solution To This Mathematics Question? by Nobody: 9:38am On Jul 13, 2020 |
dejt4u: you only want to complicate things. thats a secondary school mathematics right there. precisely SS1. |
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