Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Monochromatic green light, wavelength = 554 nm, illuminates two parallel narrow slits 7.7 µm apart. Calculate the angular deviation of the third order, n = 3, bright fringe (a) in radians and (b) in degrees.

Monochromatic green light, wavelength = 554 nm, illuminates two parallel narrow slits 7.7 µm apart. Calculate the angular deviation of the third order, n = 3, bright fringe (a) in radians and (b) in degrees.

Question Image
Grade:7

1 Answers

Yuvraj Singh
askIITians Faculty 75 Points
23 days ago
Q.Monochromatic green light, wavelength = 554 nm, illuminates two parallel narrow slits 7.7 µm apart. Calculate the angular deviation of the third order, n = 3, bright fringe (a) in radians and (b) in degrees

Ans:
dsinθ=nλ
sinθ=7.7×10−63×550×10−9​ (taking n=3)
≃216×10−3
=0.216
(Hereθ is small so we can take sinθ≈θ)
θ=0.216radian
Now,πradian=1800
⇒3.14radian=1800
So,0.216radian=3.140.216​×1800=12.40

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free