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AfilCa [17]
3 years ago
7

What is the only medium (not provided) that light would travel through even faster than air?

Physics
2 answers:
77julia77 [94]3 years ago
7 0

Answer:

Explanation:

I don't know of any others but in air the speed of light is slower by a factor of   1.0003 than it would be in a vacuum.

san4es73 [151]3 years ago
3 0

Answer:

Light travels fastest in Vacuume

Explanation:

The speed of light in vacuum is almost 299,792,458 meters per second, which is 1.0003 times faster than light travelling in air.

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A very delicate sample is placed 0.150 cm from the objective lens of a microscope. The focal length of the objective is 0.140 cm
iVinArrow [24]

Answer:

m = 14*26 = 364

Explanation:

overall magnification is given as m

m = m_{o}* m_{e}

mo magnification of objective lens

me magnification of EYE lens

where mo is given as

m_{o} = \frac{v_{o}}{-u _{0}}

and me as

m_{e} = 1+\frac{D}{f_{e}}

d is distant of distinct vision = 25.0 cm for normal eye

fe =  focal length of eye piece

focal length of objective lense is 0.140 cm

we know that

\frac{1}{v_{0}}-\frac{1}{u_{0}}=\frac{1}{f_{0}}

\frac{1}{v_{0}} = \frac{1}{u_{0}} + \frac{1}{f_{0}}

\frac{1}{v_{0}} = \frac{1}{0.150} + \frac{1}{0.14}

\frac{1}{v_{o}} = 2.1 cm

m_{o} = \frac{2.1}{0.150} = 14

m_{e} = 1+\frac{25}{1}

m_{e} =26

m = m_{o}* m_{e}

m = 14*26 = 364

4 0
3 years ago
What will make two bar magnets repel each<br> other?
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Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correc
erma4kov [3.2K]

Answer:

Statement 1 and 3 are correct.

Explanation:

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2.The mass is sliding through the globe, so only the force of gravity is acting on the mass which pulls it in downward direction. The force of gravity has two components [mg sin∅] and [mg cos∅].

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Answer:

B

Explanation:

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