The percentage error in calculated value of the refractive index of acrylic block is calculated using the formula: (true value - calculated value/true value) × 100%.
<h3>What is refractive index of a refracting medium?</h3>
The refractive index of a medium is the ratio of the sine of the angle of incidence on the medium and the sine of the angle of refraction.
- Refractive index = sin i/sin r
where;
- i is the angle of incidence
- r is angle of refraction.
The refractive index of a medium increases with density of the medium.
To determine the percentage error in determining the refractive index of a medium, the following formula is used:
- Percent error = error/true value × 100%
Therefore, the percentage error in calculated value of the refractive index of acrylic block is the ratio of the error and true value multiplied by 100%.
Learn more about refractive index at: brainly.com/question/83184
Answer:
The work done is 
Explanation:
Work is defined as the product of force and distance moved in the direction of application of force.
Given Data
distance S= 230m
force F= 140 N
Mass of car m= 1140 kg
Applying the formula for work done we have
The work done by pushing the car for a distance of 
is
Answer:
The car travel 2.52 m
Explanation:
This problem gives us the time and speed of the car with the echolocation system, and they ask us for the distance traveled, we can use the report motion equation.
Let's start by calculating the relative speed of the two cars, which in this case is the initial mass because the second vehicle is at rest.
v = d / t
d = v t
d = 14 0.18
d = 2.52 m
The car travel 2.52m
Does Physics involve science? Because I think there's a chemical bond between us. :3
Answer:
It is best to hold the umbrella at an angle which is parallel to the direction of rain drops.
Explanation:
Velocity of vector of rain drops plays crucial role here. Direction of the wind causes the rain drop directions. Hence handle of the umbrella should be parallel to the direction of rain drops. there will be more umbrella area if we keep umbrella in the direction.
