mucciak3634

04.12.2019 • 

Physics

:a laser beam is incident on two slits with separation d-0.038 mm. a screen is placed l-1.6 m from the slits. the wavelength of the laser light is a 4750 å. and θ2 are the angles to the first and second bright fringes above the center of the screen. otheex ee 25% part (a) express sin(91) in terms of d and λ. sin(θ 1) add v correct! 25% part (b) express sin(92) in terms of d and λ. sin(02) (2 a )yd correct 25% part (c) express the distance between the two bright fringes on the screen, y, in terms of θ1, θ2 and l. grade s deductic potentia 9 cotan(0) cotan(02) in(a)n 4 5 6 cos(0) | (.ilm-17 8 cos(α) cos(φ) submiss attempts per detailed sin(φ) tan(6) sin(0) tan(01) hint i give up! submit feedback: deduction per feedback hints: 0%, deduction per hint. hints remaining: 2 25% part (d) solve for the numerical value of y ¡n meters.

Ответ:

zzk8

11.01.2022

Physics

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Explanation:

Distance between two slits d = .038 x 10⁻³m

Distance of screen L = 1.6 m

Wave-length of light λ = 4750 x 10⁻¹⁰ m

If x₁ be the position of first bright fringe on the screen

Sinθ₁ =  x₁ / L

For position of second bright fringe

Sinθ₂ =  x₂ / L

Again, for the formation of first bright fringe

a ) path difference = λ

x₁ d / L = λ

d Sinθ₁ = λ

Sinθ₁ = λ / d

b ) Similarly for second bright fringe

Sinθ₂ = 2 λ / d

c ) Distance between two bright fringes

x₂ - x₁ = y

y = L ( Sinθ₂ - Sinθ₁ )

d )

y = L ( Sinθ₂ - Sinθ₁ )

=  L ( 2 λ / d -  λ / d )

= Lλ / d

=

= 2 x 10⁻² m

= 2 cm .

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Ответ:

Trendymwah9738

22.11.2021

Physics

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given that

mass of ball = 0.095 kg

initial velocity of ball towards the wall = 40 m/s

final velocity of the ball after it rebound = 30 m/s

now change in momentum is given as

So change in momentum will be 6.65 kg m/s

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