Answer:
Explanation:
The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays
When light crosses the interface between a medium with higher refractive index and a medium with lower refractive index, there is a maximum value of the angle of incidence after which there is no refraction, but all the light is reflected, and this maximum value is called critical angle.
The critical angle is given by

where n1 is the refractive index of the first medium while n2 is the refractive index of the second medium. In our problem, n1=1.33 and n2=1.58, so the critical angle is
<span> </span>speed<span>using the v = f. λ </span>equation<span>.</span>
Answer:
2 × 10⁵
Explanation:
The total mass of the drug, ibuprofen = 10 kg
Kilograms and grams are related as:
1 kg = 1000 g
Also,
Grams and milligrams are related as:
1 g = 1000 mg
So,
1 kg = 10⁶ g
Mass of the drug, ibuprofen = 10 × 10⁶ mg = 10⁷ mg
Given, mass of tablet = 50 mg
So, number of tablets = total mass / Mass of 1 tablet = 10⁷ mg / 50 mg = 2 × 10⁵
<u>Number of 50 mg tablets = 2 × 10⁵</u>