As we know that refractive index is given as

now we know that
speed of light in medium =
m/s
now refractive index is given as


now we know that refractive index of glycerine is 1.473
So here this material will be <u>GLYCERINE</u>
In a), no work is done to move horizontally 'across" gravity. In b), he does (m) (g) (h) = (100)(9.8)(1) = 980 joules of work to lift the bag, and then no more work is done by the belt to move both of them horizontally.
The base of table is "1.08856 m" far away from the ball land.
Given:
Distance travelled by ball,
Initial velocity,
Acceleration,
Constant speed,
As we know the formula,
→ 
By substituting the values, we get
→ 
→ 
→ 
→ 
Let,
- Horizontal distance will be "x".
- Time = t
→ 


Thus the solution above is right.
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Answer:
B.
Explanation:
Oxygen is really -2
While the other options in correct form is
Hydrogen O.S is +1
A pure group 1 element is 0.
And
A monoatomic ion's O.S is the charge contained by it