Light is form of electromagnetic radiation. It has certain frequency and wavelength. The carriers of light are called photons. Photons have dual particle-wave properties but they are not considered to be matter.
The definition of photons excludes answer A).
All electromagnetic radiation is energy. So the B) is correct answer.
Color is perceived in our eyes as a response to different wavelengths of a light. This excludes answer C).
Answer:
560nm
Explanation:
You can use the following expression for thin films:
where n is the index of refraction, d is the thicknes of the thin film and m is the order of the diffraction pattern. For keratin layers we can use n=1.40. For the longest wavelenth we use m =1.
Hence, we obtain:
HOPE THIS HELPS!!
Answer: For producing the error free results of an experiment that identification and quantification of effects of uncertainties are important.
Explanation:
The error analysis is necessary to detect the uncertainties in the measured data or results of the experiment to ensure the validity and acceptability of the results. The errors can be avoided by increasing the precision and accuracy of the measuring instruments. The other factors like changes in the variables of the experiment can also contribute to the errors in the experiment.
It is necessary to perform the multiple trails in an experiment to assure that the results of the experiment are consistent with every trial.
Answer:
destroy
Explanation:
cuz if anyhow throw rubbish, it will affect/destroy the world environment