Based on the nature of reflection of light from surfaces, smooth surfaces produce regular reflection while rough surfaces produce diffuse reflection.
<h3>What is reflection of light waves?</h3>
Reflection of light waves refers tobtye bouncing back of light waves when they hit a shiny surface.
Depending on the nature of the surface, reflection of light waves can either be regular if diffuse.
Smooth surfaces produce regular reflection while rough surfaces produce diffuse reflection.
Based on the properties of reflection:
- A microscopic view of a sheet of paper shows that the surface is rough, thus it would produce diffuse reflection.
- Rough pages are easier to read from than smooth and glossy surfaces because they produce diffuse reflection while reading off smooth surface causes a glare due to intense regular reflection
- A wet road appears darker because more light passes through and it reflects less light and looks darker
- diffuse reflection do not all pass through the principal focus, thus an image is not formed off a rough surface
Therefore, it can be concluded that the rough surfaces produce diffuse reflection while smooth and glossy surfaces produce regular reflection.
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in a monoprotic acid , its capable of dissociating 1 H⁺ ion . The base used is NaOH which is capable of giving out 1 OH⁻ ion.
Therefore both base and acid react in a 1:1 molar ratio, that means for each 1 mol of monoprotic acid there is , it requires 1 mol of NaOH to be neutralised.
So at equivalence point the number of acid moles present should react with an equal number of NaOH moles to be neutralised
number of NaOH moles added - concentration x volume
number of NaOH moles - 0.0950 mol/dm³ x 27.4 x 10⁻³ dm³ = 0.00260 mol
since molar ratio of NaOH to Acid is 1:1
number of acid moles present is also - 0.00260 mol
mass of acid added - 0.2140 g
we can find molar mass using following equation
molar mass = mass / number of moles
molar mass = 0.2140 g / 0.00260 mol = 82.3 g/mol
therefore molar mass of monoprotic acid is 82.3 g/mol
In other words, it would take Deep Space 1 more than 81,000 years to travel the 4.24 light-years between Earth and Proxima Centauri at its top speed of 56,000 km/h. In relation to human history, that would be more than 2,700 generations.
Nearly 40 trillion kilometers, or 4.4 light-years, separate us from Alpha Centauri. The NASA-Germany Helios probes, the fastest spacecraft to date to be launched into orbit, flew at a speed of 250,000 kilometers per hour. The probes would need 18,000 years to travel at such pace to arrive at the sun's nearest neighbor. The calculations reveal that it is almost impossible to reach the nearest star in a human lifetime, even with the most futuristic technologies.
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Answer:
The answer is A - Newtons First Law
Explanation:
The law is what we call "Inertia". The law basically states that an object wants to stay where it is. We can see the effect from our cars, albeit with less force. When the car turns right, your body goes left, opposite to the turns direction due to us moving position in the car.
Ohm's Law is one of the most fundamental and important laws governing electrical and electronic circuits.
