True or False
Every question needs an answer of true or false
You cannot see through opaque materials because they absorb or reflect all light
Sunscreens protect us from ultraviolet rays by reflecting the photons of the ultraviolet wavelengthes
Cyan is a pigment that reflects blue light and absorbs all other colors
Sound waves can be diffracred, but light waves cannot
Lenses are designed to reflect light rays.
Additional Details
2006-11-15 22:25:11 · 8 answers · asked by cetinnovations 1 in Science & Mathematics ➔ Chemistry
the answers are
1) True, opaque materials are those which donot allow light to pass through them. they block the path of light. so u cant see through them.
2) True, sunscreens protect from UV rays by reflecting the photons of UV wavelength, which are harmful, when exposed to the skin.
3) True, the colour of any object is decided by which wavelength it reflects. cyan reflects the wavelength corresponding to blue and absorbs all other wavelengths.
4) False, because light waves are also diffracted and there are many applications on diffraction of light too.
5) False, because lenses are for converging or diverging light rays, but not to reflect them.
2006-11-15 22:35:58 · answer #1 · answered by Anonymous · 1⤊ 0⤋
You're bored correct now? False It's raining wherein ever you're correct now? False You're by myself correct now? False You plan to stick house this night? False You remember your self intriguing? True You discover a Y!A consumer intriguing? True You could remember assembly a Y!A consumer in individual? True You have cheated to your companion earlier than? FALSE You were cheated through your companion earlier than? TRUE You preferred this survey? precise You will big name this question? precise
2016-09-01 13:23:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
first true
second not true absorbing
cyan reflects bue so true
Four false sounds and light waves can be diffracted
Lenses refract ray and not reflect so false. the mirror reflects
2006-11-16 00:09:21 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
Do you have a strange obsession with light? true;)
2006-11-15 22:30:19 · answer #4 · answered by Ocsar H 1 · 0⤊ 0⤋
1. true
2. true
3. true
4. false
5. false
2006-11-15 22:29:43 · answer #5 · answered by Lucy 1 · 1⤊ 0⤋
1. true
2.true (not that sure)
3.true (not that sure)
4.true
5.false
try to check www.wikipedia.org to be sure...
2006-11-15 22:34:02 · answer #6 · answered by four_eyed_ninja 3 · 0⤊ 1⤋
true , true, true , false , false
2006-11-15 23:30:47 · answer #7 · answered by Dhruv 2 · 0⤊ 0⤋
T.T.F.F.F.
2006-11-15 22:28:22 · answer #8 · answered by Duchess Ella 3 · 0⤊ 1⤋