Physics: Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.320 mm wide. The diffraction pattern is observed on a screen 2.60 m away. Define the width of a bright fringe as the distance between the minima on either side.

Red light of wavelength 633 nm from a helium-neon

Ответ:

cyaransteenberg

21.01.2022

Physics

$W = 10.28\ mm$

Explanation:

Given,

Red light wavelength = 633 nm

width of slit = 0.320 mm

distance,d = 2.60 m

Condition of first maximum

$a sin \theta_1 = m\lambda$

$\theta_1 =sin^{-1}(\dfrac{m\lambda}{a})$

m = 1

$\theta_1 =sin^{-1}(\dfrac{633\times 10^{-9}}{0.32\times 10^{-3}})$

$\theta_1 = 0.1133^\circ$

Width of the first minima

$y_1 = L tan \theta_1$

$y_1 = 2.60\times tan( 0.11331)$

$y_1 = 5.14 \ mm$

Now, width of the central region

W = 2 y_1

$W = 2\times 5.14$

$W = 10.28\ mm$

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Ответ:

kloeyknows7323

14.01.2023

Physics

p = 250 kg-m/s

Explanation:

Given that,

The mass of a cart, m = 25 kg

Velocity of the cart, v = 10 m/s

We need to find the momentum of the cart. The formula for the momentum of an object is given by :

p = mv

Substitute all the values,

p = 25 kg × 10 m/s

p = 250 kg-m/s

So, the momentum of the cart is equal to 250 kg-m/s.

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Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.320 mm wide. The diffraction pattern is observed on a screen 2.60 m away. Define the width of a bright fringe as the distance between the minima on either side.

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