3 years ago

Identify 3 preys and their preys

Physics

1 answer:

Archy [21]3 years ago

5 0

Answer:

what can u tell me deteatils of ur question

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if a diffraction grating produces a third-order bright spot for red light (of wavelength 650 nm ) at 68.0 ∘ from the central max

Mashutka [201]

Answer:

The angle is 25.34°.

Explanation:

Given that,

Wave length = 650 nm

Angle = 68.0°

We need to calculate the distance

For a diffraction grating

$d\sin\theta=m\lambda$

$d=\dfrac{2\times650\times10^{-9}}{\sin68.0}$

$d=2.10\times10^{-6}\ m$

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Using formula for angle

$d\sin\theta=m\lambda$

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