2n t = m λ₀, R = 0.240 mm. The interference from thin films arises from two main rays: one reflecting off the surface and another from within the film. The ray reflected from the top experiences a 180º phase shift as it transitions from a material with a lower refractive index to one with a higher index. This phase shift results in a λ/2 change. Meanwhile, the ray traversing the film undergoes a wavelength alteration due to the medium's refractive index, where λ₀ = λ / n. Thus, considering this, the equation for destructive interference incorporates an integer phase shift leading to 2t = (m’+ ½ + ½) λ₀ / n and simplifying to 2t = (m’+1) λ₀ / n, with the conclusion that m = m’+ 1, resulting in 2n t = m λ₀, where m can be 0, 1, 2,... The thickness of the hair serves as the film’s thickness indicated by 2R = t, thereby concluding that R = t / 2 and results in R = 0.240 mm.
Answer:
As stated, the speed of light is being reached.
Explanation:
The speed of light can be expressed as:

Where E represents energy = 3.03x10⁻¹⁹J
P signifies momentum = 1.01x10⁻²⁷kgm/s
Substituting in:

893 Newtons. The mass of Usain Bolt is 94 kg, and his acceleration in the first 0.89 seconds is 9.5 m/s². According to Newton's Second Law, the average horizontal force that Bolt exerted against the ground in that first 0.890 seconds is 893 Newtons.
Periscope utilizes 45-45-90 prisms that employ total internal reflection on the sides positioned next to the 45° angles. When light enters the water, the water acts as a lens, and the viewable object appears further away than it typically would.