Answer:
Refractive index, n = 2.419
Explanation:
It is given that,
Speed of light in the medium,
Speed of light in the vacuum,
Let n is the index of refraction for a medium. We know that the refractive index for any medium is equal to the ratio of speed of light in vacuum to the speed of light in medium. It can be written as :
n = 2.419
So, the index of refraction for a medium is 2.419. Hence, this is the required solution.
Answer:Momentum
Explanation:
Product of an object mass and velocity is called Momentum. Basically momentum is the measure of mass in motion . More is the mass more will be the momentum and similar applies for velocity.
For example a bus moving with low velocity can have a same momentum as that of a bullet moving with a very high velocity
Momentum is denoted by Symbol P
Answer:
<h2>The water will move faster</h2>Explanation:
This happens as part of the consequences of the continuity of an incompressible fluid, of which water is an example.
so as the water emerges from the wider section the flow velocity increases and vice versa.
Hence the flow velocity in indirectly proportional to the area
The continuity equation is given below for our analysis
-------------------1
where
A1= the area of the wider section of the tank
V1= the flow velocity from the wider section
A2= the area of the hole at the bottom
V2= velocity of flow at the bottom.
Answer:
number of coulombs = 1.28 ×
option b is correct
Explanation:
Given data
area A = 4cm
rate of hole r = 1000 cm/s
length L = 2mm
to find out
number of coulombs
solution
we will apply here number of coulombs formula that is
number of coulombs = e×A×L× r
put here value e = 1.6 × coulombs
and A = 4 × mand length = 2 ×
m
number of coulombs = 1.6 × × 4 ×
× 2 ×
× 1000
number of coulombs = 1.28 ×
so option b is correct