3 years ago

ANSWER SOOONN PLZ!!

1 answer:

Ket [755]3 years ago

3 0

c it is both a and b

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LUCKY_DIMON [66]

Where are the pictures or options?

7 0

3 years ago

pychu [463]

Answer:

1178 nm

Explanation:

We are given that

Wavelength of light= $\lambda=589nm=589\times 10^{-9} m$

$1nm=10^{-9} m$

We have to find the thickness of spacer if five dark fringes are observed between the edges of the glass.

Suppose that first dark fringe and fifth dark fringe near spacer, then the path length of light is 4 times the wavelength of light.

The light passes through air film is two times then the change in air film thickness from one edge to other is two times the wavelength of light.

Change in air film thickness from one edge to other edge is same as the thickness of spacer.

Therefore, thickness of spacer= $2\lambda$

Thickness of spacer= $2\times 589\times 10^{-9}$ m

Thickness of spacer=1178 nm

Hence, the thickness of spacer=1178 nm

8 0

3 years ago

soldi70 [24.7K]

What is the question?

4 0

3 years ago

Westkost [7]

Answer:

because of the gravity of the earth

6 0

2 years ago

kompoz [17]

The answer is 3.52 m/s^2

4 0

3 years ago